1990 Mazda Protege
1990 Mazda Protege Stereo Wiring Information Radio Constant 12v+ Wire: Blue/Red Radio Switched 12v+ Wire: Blue/White Radio Ground Wire: Chassis Radio Illumination Wire: Red/Black Left Front Speaker Positive Wire (+): Blue Left Front Speaker Negative Wire (-): Blue/White Right Front Speaker Positive Wire (+): Blue/Red Right Front Speaker Negative Wire (-): Blue/Yellow Left Rear Speaker … Read more