November 4, 201212 yr comment_406043 Ok I was able to confirm my original theory:Red +12 VoltsBlack = groundBlue = Antenna control (+12 volts when radio is on)Gray = Left speaker +Green = Right speaker +Speakers - return to groundUnit actually sounded pretty good for 35 years old. Link to comment https://www.classiczcars.com/forums/topic/44683-240260280z-radio-swap/?&page=2#findComment-406043 Share on other sites More sharing options...
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