Vintage 70's 'Realistic' car radio wiring
Hey everyone
Yesterday I found a vintage car radio from 'Realistic' (Radio Shack) with casette player.
I'm sure it's from the 70's (I think 1976.)
I have a problem with the wiring. I did some research on the internet, and I think I got most of the wires right...
Here is what I got:
Green - Left speaker
Grey - Right speaker
Red - +12V
Black - -12V
And the Antenna connector ofcourse.
But then there is one last black wire from which I don't know what its function is...
Do you guys know what the function is?
Here are some pictures:
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