2008 Pontiac G6 Stereo Wiring Information Radio Battery Constant 12v+ Wire: Red/White Radio Ground Wire: Black/White Radio Illumination Wire: Pink 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 Left Rear Speaker Positive Wire … Continue reading 2008 Pontiac G6