2007 GMC Sierra 1500 Stereo Wiring Information Radio Battery Constant 12v+ Wire: Red/White Radio Accessory Switched 12v+ Wire: Dark Green Radio Ground Wire: Black Stereo Dimmer Wire: Yellow Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire … Read more
2008 GMC Sierra 1500 Stereo Wiring Information Radio Battery Constant 12v+ Wire: Red/White Radio Accessory Switched 12v+ Wire: Dark Green Radio Ground Wire: Black Stereo Dimmer Wire: Yellow Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire … Read more
2009 GMC Sierra 1500 Stereo Wiring Information Radio Battery Constant 12V+ Wire: Red/White Radio Accessory Switched 12V+ Wire: Dark Green Radio Ground Wire: Black Radio Dimmer Wire: Yellow Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire … Read more
2010 GMC Sierra 1500 Stereo Wiring Information Radio Battery Constant 12V+ Wire: Red/White Radio Accessory Switched 12V+ Wire: Dark Green Radio Ground Wire: Black Radio Dimmer Wire: Yellow Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire … Read more
2011 GMC Sierra 1500 Stereo Wiring Information Radio Battery Constant 12V+ Wire: Red/White Radio Accessory Switched 12V+ Wire: Dark Green Radio Ground Wire: Black Radio Dimmer Wire: Yellow Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire … Read more
2012 GMC Sierra 1500 Stereo Wiring Information Radio Battery Constant 12V+ Wire: Red/White Radio Accessory Switched 12V+ Wire: Dark Green Radio Ground Wire: Black Radio Dimmer Wire: Yellow Left Front Speaker Positive Wire (+): Tan Left Front Speaker Negative Wire (-): Gray Right Front Speaker Positive Wire (+): Light Green Right Front Speaker Negative Wire … Read more