1970 Cuda Diagram from R11 Music Master Radio system

[72and86]

1970 Cuda
I have the R11 Music Master AM Radio system but want to know the wiring to the radio, to a speaker (fr) to a fader and 2 back speakers.
Basically my 1970 Cuda came with no radio but it came with one in a box presumed from eBay. Also was a fader switch wrapped in tape for 420 presumed from a swap meet.
I have 1 speaker in front and 2 in the rear.
Im trying to figure out what goes to what ...? Thanks

[headejm]

  Red is battery power. Ground comes from frame. Orange is for the light inside the radio. Black, green, purple should be for the speakers. It's easy to bench test a radio. Check the wiring diagram for your particular car.

[fc7cuda]

Black and green go to your front center speaker.  I believe with just a AM radio the optional rear speaker switch was for a single rear speaker.