Mercury Grand Marquis

2010 Mercury Grand Marquis Stereo Wiring Information Radio Battery Constant 12V+ Wire: Violet Radio Accessory Switched 12V+ Wire: Dark Blue/Light Green Radio Ground Wire: Black/Light Green Radio Amp Trigger Wire: Dark Green/Violet Left Front Speaker Positive Wire (+): Orange/Light Green Left Front Speaker Negative Wire (-): Light Blue/White Right Front Speaker Positive Wire (+): White/Light … Read more

2011 Mercury Grand Marquis Stereo Wiring Information Radio Battery Constant 12V+ Wire: Violet Radio Accessory Switched 12V+ Wire: Dark Blue/Light Green Radio Ground Wire: Black/Light Green Radio Amp Trigger Wire: Dark Green/Violet Left Front Speaker Positive Wire (+): Orange/Light Green Left Front Speaker Negative Wire (-): Light Blue/White Right Front Speaker Positive Wire (+): White/Light … Read more