don't say red because there is no red wire in the 3 wire radio assembly that came stock. there is a yellow wire, black with stripe, and gray with stripe
1979 Chevrolet Camaro Car Radio Wire Diagram Car Radio Battery Constant 12v+ Wire: Orange Car Radio Accessory Switched 12v+ Wire: Yellow Car Radio Ground Wire: Black Car Radio Illumination Wire: Gray Car Stereo Dimmer Wire: Light Brown Car Stereo Antenna Trigger Wire: Pink Car Stereo Amp Trigger Wire: N/A Car Stereo Amplifier Location: N/A Car Audio Front Speakers Size: 3 1/2″ Car Audio Front Speakers Location: Dash Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire (-): Dark Green Car Audio Rear Speakers Size: 6″ x 9″ Speakers Car Audio Rear Speakers Location: Rear Deck Left Rear Speaker Positive Wire (+): Brown Left Rear Speaker Negative Wire (-): Yellow Right Rear Speaker Positive Wire (+): Dark Blue Right Rear Speaker Negative Wire (-): Light Blue
There is no Accessory wire, but only one yellow switched power wire hot in run. I usually steal accessory power in an F-body from the cigar lighter harness. One of the other wires, I forget which, is hot with the dash lights. Isolate it.
