'73 Barracuda wiring connector help needed

[Hideintire]

Hello,
  I have 2 connectors I can't identify...please help. First two images are drivers side under dash near HVAC. Second two images are passenger side under dash near glovebox.
I purchased car recently and trying to go through wiring issues.
  Thank you for the help!
Jim

[anlauto]

@Burdar is our go to guy on 73 questions 

[Burdar]

You can download a 73 wiring diagram on the MyMopar website.  That's probably your best bet since I dont have access to my 73 at the moment. Sorry I'm not more help.

[Hideintire]

Thanks, I was unaware of that site. I'll check it out.

[Rich G.]

Here's my wiring diagram.

[Bullitt-]

diagrams    https://mymopar.com/wiring/   

It appears there are 2-plugs in the four pictures
Looking at the diagrams it appears to be
1st 2   LT. Green, Black Green, DK Green - Heater Switch
2nd 2   DK Blue, Brown Yellow, Gray - Seat Belt Relay

[Hideintire]

Thank you Bullitt! I was wondering if driver side might be seat belts, but I can't find a mate under dash. The Passenger side, is there more connections than just the ones on face of heater box that you can see...maybe one on top?

[Bullitt-]

  On a non-A/C heater box the plug goes to the resistor on top if memory serves me.
Not sure on on the A/C model which is what you appear to have.

[parbs]

Wire is for the heater resistor.