Radio Options R11, R22, R26, R31, R32, R33, R35, R36

[cataclysm80]

E body Radio Options


Not Coded = (1970-74) No radio. Radios were optional not standard. As such, there is no "radio delete". Car will have a single speaker dash with speaker grill. Under the speaker grill will be a black cardboard insert instead of a speaker. The car will not have any speakers or other speaker grills. The package tray will not have perforations for rear speakers. There will also not be a crossover box, rear speaker fader, antennae, or any speaker wiring. The fender (or quarter panel on trans am cars) will not have a hole for an antennae, and the hole that the antennae lead would have passed through to get to the fender will be filled with a standard body plug. There will not be a rectangular hole for the radio in the "radio trim plate".

Coded R11 = (1970-74) 2 watt Music Master AM only radio. Car will have a single speaker dash with speaker grill and one speaker with wiring. The car will not have any other speakers or speaker grills. The package tray will not have perforations for rear speakers. There will also not be a crossover box, rear speaker fader, or any other speaker wiring. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R11 = (1970-74) 2 watt Music Master AM only radio. Car will have a single speaker dash with speaker grill and one speaker with wiring. The car will not have any other speakers. The package tray will have perforations in both sides. The right side is used as an air intake for the defogger. There will also not be a crossover box, rear speaker fader, or any other speaker wiring. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded R11, R31 = (1970-74) 2 watt Music Master AM only radio. Car will have a single speaker dash with speaker grill and speaker with wiring. The car will also have a single rear speaker with wiring on the drivers side. The package tray will have perforations in both sides. A rear speaker fader (single rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R11, R31 = (1970-74) 2 watt Music Master AM only radio. Car will have a single speaker dash with speaker grill and one speaker with wiring. The car will also have a single rear speaker with wiring on the drivers side. The package tray will have perforations in both sides. A rear speaker fader (single rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded R22 = (1970 only) 10 watt 8 Track AM only stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The plastic dash trim that goes around the stereo will have a notch molded into it for the 8 Track unit. The package tray will not have perforations for rear speakers. There will not be a rear speaker fader, or any other speaker wiring. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R22 = (1970 only) 10 watt 8 Track AM only stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The plastic dash trim that goes around the stereo will have a notch molded into it for the 8 Track unit. The package tray will have perforations in both sides. The right side is used as an air intake for the defogger. There will not be a rear speaker fader, or any other speaker wiring. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded R22, R31 = (1970 only) 10 watt 8 Track AM only stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The plastic dash trim that goes around the stereo will have a notch molded into it for the 8 Track unit. The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R22, R31 = (1970 only) 10 watt 8 Track AM only stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The plastic dash trim that goes around the stereo will have a notch molded into it for the 8 Track unit. The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will also come with an adapter housing for attaching a rear speaker as this speaker location is also the air intake for the defogger. If the car is equipped with a spare tire, it will be a space saver spare tire.

Coded R26 = (1971-73) 2 watt Music Master AM only radio with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will not have perforations for rear speakers. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded R26, R33 = (1971 only) 2 watt Music Master AM only radio with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will not have perforations for rear speakers. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R26 = (1971-73) 2 watt Music Master AM only radio with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will have perforations in both sides. The right side is used as an air intake for the defogger. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded H31, R26, R33 = (1971 only) 2 watt Music Master AM only radio with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will have perforations in both sides. The right side is used as an air intake for the defogger. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded R26, R32 = (1971-73) 2 watt Music Master AM only radio with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded R26, R32, R33 = (1971 only) 2 watt Music Master AM only radio with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R26, R32 = (1971-73) 2 watt Music Master AM only radio with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded H31, R26, R32, R33 = (1971 only) 2 watt Music Master AM only radio with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded R35 = (1970-74) 10 watt AM/FM stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The package tray will not have perforations for rear speakers. There will not be a rear speaker fader, or any other speaker wiring. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R35 = (1970-74) 10 watt AM/FM stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The package tray will have perforations in both sides. The right side is used as an air intake for the defogger. There will not be a rear speaker fader, or any other speaker wiring. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded R35, R31 = (1970 only) 10 watt AM/FM stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded R35, R32 = (1971-74) 10 watt AM/FM stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R35, R31 = (1970 only) 10 watt AM/FM stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender (or quarter panel on trans am cars) will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will also come with an adapter housing for attaching a rear speaker as this speaker location is also the air intake for the defogger. If the car is equipped with a spare tire, it will be a space saver spare tire.

Coded H31, R35, R32 = (1971-74) 10 watt AM/FM stereo. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will also come with an adapter housing for attaching a rear speaker as this speaker location is also the air intake for the defogger. If the car is equipped with a spare tire, it will be a space saver spare tire.

[cataclysm80]

Coded R36 = (1971 only) 10 watt AM/FM stereo with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will not have perforations for rear speakers. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded R36, R33 = (1971 only) 10 watt AM/FM stereo with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will not have perforations for rear speakers. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R36 = (1971 only) 10 watt AM/FM stereo with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will have perforations in both sides. The right side is used as an air intake for the defogger. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded H31, R36, R33 = (1971 only) 10 watt AM/FM stereo with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The package tray will have perforations in both sides. The right side is used as an air intake for the defogger. There will not be a rear speaker fader, or any other speaker wiring. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will not come with an adapter housing for attaching a rear speaker.

Coded R36, R32 = (1971 only) 10 watt AM/FM stereo with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded R36, R32, R33 = (1971 only) 10 watt AM/FM stereo with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio.

Coded H31, R36, R32 = (1971 only) 10 watt AM/FM stereo with stereo cassette player. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will also come with an adapter housing for attaching a rear speaker as this speaker location is also the air intake for the defogger. If the car is equipped with a spare tire, it will be a space saver spare tire.

Coded H31, R36, R32, R33 = (1971 only) 10 watt AM/FM stereo with stereo cassette player and microphone. Car will have a three speaker dash with speaker grills and three speakers with wiring. This setup requires a crossover box. There are two types of mounting brackets for the cassette player. (on tunnel or on optional console) The car will also have two rear speakers with wiring. The package tray will have perforations in both sides. A rear speaker fader (dual rheostat) will be present near the heater controls on rallye dash equipped cars, or on the underside of the instrument bezel near the fuel gauge on cars without the rallye dash. The fender will have a hole for an antennae, and an antennae will be present with a lead going to the radio. The rear window defogger will have all of its parts and wiring, but will also come with an adapter housing for attaching a rear speaker as this speaker location is also the air intake for the defogger. If the car is equipped with a spare tire, it will be a space saver spare tire.

NOTES: 70 & 71 cars use a telescopic antennae, while 72-74 cars use a 31" fixed mast antennae.

The crossover box on a 3 speaker car is the same as one on a 5 speaker car.  The wiring harness between components is different to accommodate the fader and rear speakers.

Convertibles cannot be equipped with H31, R31, or R32 because there is no package tray to mount them.

A microphone for your 72 or 73 car with cassette player could be ordered over the counter at your local dealership, but could not be ordered to come with the car from the factory.
The factory installed microphone has a straight cord, while the over the counter microphone has a curly cord.

A defogger or rear speaker with fader could have been added to an otherwise unequipped car by the dealership.  These dealership add on kits included an oval bezel and a speaker grill to cover the hole which would need to be cut into the standard non-perforated package tray.

Any of these components should work on any E body with the exception of the 70 Challenger. It has a different dash. Components specific to the 70 challenger are...
1. all three speaker grills on the dash
2. The plastic dash trim around the radio/stereo with or without 8 track notch.
3. "radio trim plate" will have vertical ribs if not equipped with a rallye dash.

[Cuda Cody]

EDIT: to add to your post from another one of your posts:  Here's @cataclysm80  comments about speakers:

The magnets in original speakers have weakened with age.  Reconing doesn't do much to fix that.

It's nice to have speakers that work, but if you really plan to listen to them, then you want them to work Well.  Most aftermarket speakers use a larger ceramic magnet.  Turnswitch.com makes speakers with super magnets like you find inside computers.  They have 4 times the field strength of original speakers, and twice the field strength of typical aftermarket ceramic magnets, all while being small enough to look like the original speakers and fit without having to perform dash surgery.  Greg Ward has highly recommended them on numerous occasions.

http://www.turnswitch.com/speakers.htm

Make sure you're running 8 ohm speakers with vintage radios & 4 ohm with newer radios (including conversion radios).



My original comments:  Oh MY GOSH!!!!!     That's the best Radio Code decoded / option list I've EVER seen!!!!!!  It's things like this that get me so excited I'll hardly sleep tonight.                              

[cataclysm80]

I don't see it at the moment, but somewhere around here I have a note about the microphone cord for the cassette player being curly or not curly.  I think it has something to do with whether or not it's a factory installed microphone or an over the counter microphone.


(UPDATE: Found my note: The factory installed microphone has a straight cord, while the over the counter microphone has a curly cord.)

[Finoke]

Great write up! Thank you! 

[anlauto]

Wow...That is some serious information  We should pair that with the identifying photos on Greg Wards radio site    http://www.wardsclassiccarradiorepair.com/id15.html

[fc7cuda]

Tons of info. there.  Everything you wanted to know about the radio codes.  Nice job!!

Tom

[wanderlustin]

@cataclysm80 that is the most thorough E-body radio encyclopedia I have ever read!  We really need a "mind blown" emoticon because that kind of info really flips my lid!   Thank you for sharing

[cataclysm80]

For more info on the H31 Defogger option mentioned above, check out this link...
http://forum.e-bodies.org/index.php?topic=174.0

[headejm]

  Thank You for taking the time to provide this awesome summary! Fantastic and (very) useful information. 

[cataclysm80]

E body Radio identification...
http://forum.e-bodies.org/index.php?topic=527.0;topicseen

[Promo Pink]

Incredible information ! Thanks for taking the time to do that and post it.

I have a question!!

Would all the codes appear on the fender tag?

[Burdar]

Would all the codes appear on the fender tag?

Each different stage of production had a way of tracking what options each car was supposed to receive.  That's why you can sometimes find multiple build sheets in the same car.  The people putting the dash together had a build sheet to go off of.  People on the main assembly line had a separate build sheet they looked at.  The fender tag was the body shop's way of determining what options the car was going to receive.  If the body needed a special part in order to install a component down the line, they needed to know about it.  Those are the options that were put on the fender tag.  If an option didn't require the body shop to install a special part, then they didn't need to know about it and it wasn't put on the tag.

If the car was going to receive a radio, the body shop needed to know so they could install a fender with an antenna hole in it.  The radio code will be on the fender tag.  My car has the R11 radio WITH a single rear speaker.  R11 is the ONLY code on the fender tag in regards to a radio.  The rear speaker option isn't on it.

[cataclysm80]

   Yep, that is correct.

so they could install a fender with an antenna hole in it. 

Except I think the assembly line didn't have fenders with antenna holes and fenders without antenna holes, they just had fenders (without antenna hole).
If the car needed an antenna, they made the hole in the fender for it.

[750-h2]

Great info! My car which I believe is all original has the R31 rear speaker and fader switch yet the fender tag only shows R11. Were these radio codes always on the data tag?