Most radio wire pins is vary by model, you may had to move a pin to match with factory plug. Geting power from ignition with red cable provided to ensure there is 12 volts supply.
Not compatible with amp systems like Bose, Infinity, On-Star etc
Compatible Vehicles: Chevrolet: Avalanche 2003-2006 Cavalier 2000-2005 Cobalt 2005-2006 Colorado 2004-2012 Corvette 2005-2013 Equinox 2005-2006 Impala 2000-2005 Malibu 2001-2007 Malibu Classic 2004 Malibu Maxx 2004-2007 Monte Carlo 2000-2005 Silverado 2003-2006 Silverado Classic 2007 SSR 2003-2006 Suburban 2003-2006 Tahoe 2003-2006 Trailblazer 2002-2009 Uplander 2005-2008 GMC: Canyon 2004-2012 Envoy 2002-2009 Savana 2003-2007 Sierra 2003-2006 Sierra Classic 2007 Yukon 2003-2006 Note: Wire Harness Will Not Work With Bose Systems Or Vehicles With On-Star.