AM/FM radio and wire identification

AAndrews said

I'm pretty sure here's how they are wired. Green and black are speaker. Red is power, orange as stated is dial illumination and brightness. Funny thing though is that there is no brand id on the scale. Usually says Dodge, Plymouth or Chrysler.


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I just noticed in the photo you posted the black and green wires are joined by a plug at the end. When i removed mine, there was an unused gray plug hanging from behind the dash plugged into nothing. I wonder if my radio (of indeterminate year) originally had a plug at the end of the black and green wires that didn't jive with the 1970 plug in my car.

Thanks again for the help everyone