Compatible with Chevrolet Cobalt 2005-2006, Avalanche 2003-2006, Colorado 2004-2012, Corvette 2005-2012, Equinox 2005-2006, Impala 2000-2005, Cavalier 2000-2005,Malibu 2001-2007, Malibu Classic 2004, Malibu Maxx 2004-2007, Monte Carlo 2000-2005, Silverado 2003-2007 (2007) Classic Models ONLY, SSR 2003-2006, Suburban 2003-2006, Tahoe 2004-2006, Trailblazer 2002-2009, Uplander 2005-2008 | Replacement for GMC Envoy 2002-2009, Canyon 2004-2012, Savana 2003-2007, Sierra 2003-2007, Sierra Classic 2007, Yukon/Yukon XL 1500 2003-2006. Buick: 2004 - 2007 Ranier, 2005 - 2007 Terraza, 2005 - 2009 LaCrosse. Cadillac 2003 - 2006 Escalade ESV/EXT | Compatible with Pontiac Sunfire 2000-2005, Grand Am 2001-2005, Aztek 2001-2005, G6 2005-2009, Grand Prix 2004-2008, Montana 2000-2005, Montana SV6 2005-2006, Torrent 2006. Hummer SUT 2003-2007, H2 2003-2007, H3 2005-2010, H3T 2009-2010. Isuzu 2003 - 2008 Ascender. Oldsmobile 2001 - 2004 Alero, 2002 - 2004 Bravada, 2000 - 2004 Silhouette. Saturn 2005 - 2007 Relay. | 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