This Installation Package fits the following vehicles: 
BUICK:
2004 – 2007 Rainier
2002 – 2007 Rendezvous
CADILLAC:
2003 – 2006 Escalade
2004 – 2006 Escalade ESV
2004 – 2006 Escalade EXT
CHEVROLET:
2003 – 2006 Avalanche 1500
2003 – 2006 Avalanche 2500
2003 – 2005 Blazer
2000 – 2005 Cavalier
2004 – 2012 Colorado
2003 – 2006 Express 1500
2003 – 2006 Express 2500
2000 – 2005 Impala
2001 – 2003 Malibu
2000 – 2005 Monte Carlo
2004   S10
2003 – 2006 Silverado 1500
2003 – 2006 Silverado 2500 HD
2003 – 2006 Silverado 3500 
2007 Silverado Classic only (made like 2006)
2004 – 2006 SSR
2003 – 2006 Suburban 1500
2003 – 2006 Suburban 2500
2003 – 2006 Tahoe
2002 – 2009 Trailblazer
2000 – 2005 Venture – Integrated Door Chimes Only
GMC:
2004 – 2012 Canyon
2002 – 2009 Envoy
2003 – 2007 Savana 1500
2003 – 2007 Savana 2500
2003 – 2006 Sierra 1500
2003 – 2006 Sierra 2500 HD
2007 Sierra Classic only (made like 2006)
2002 – 2004 Sonoma
2003 – 2006 Yukon
2003 – 2006 Yukon XL 1500
2003 – 2006 Yukon XL 2500
HUMMER: 
2003 – 2006 H1
2003 – 2007 H2
ISUZU:
2004 – 2008 Ascender
2006 – 2008 i280
2006 – 2008 i290
2006 – 2008 i350
OLDSMOBILE:
2002 – 2004 Bravada
2002      Intrigue
2000 – 2004 Silhouette – Integrated Door Chimes Only
PONTIAC:
2001 – 2005 Aztek
2000 – 2005 Montana – Integrated Door Chimes Only
2000 – 2005 Sunfire