Amazon.com: Harmony Audio Compatible with 2006-12 Chevy HHR HA-R65 6.5" New Front Door Replacement 300W Speakers with HA-823006 6.5" 6.75" Speakers Adapter and HA-724568 Factory Speaker Replacement Harness : Electronics
2003-2007 Chevrolet Silverado and GMC Sierra extended cab
8" and 6.5" (86) Speaker Pods for 2000-2006 GMC Sierra - Custom Speaker Pods
2003-2007 Chevy Silverado and GMC Sierra regular cab
1999 - 2006 GMC / Chevy Front Door Speaker Install Suburban Tahoe Yukon Avalanche Silverado - YouTube
2006 chevy silverado crew cab - change out rear door speakers without adaptor - YouTube
Amazon.com: Harmony Audio HA-R65 Compatible with Chevy Avalanche 2002-2006 Rhythm Series 6.5" 300W Speakers & Grills, HA-R5 Rhythm Series 5.25" 225W Speakers & Grills and HA-724568 Speaker Replacement Harness : Electronics
1995-2006 GM Full Size Truck Kicker CS Speaker Package: GMT-95-06-CSCSK
2003-2007 Chevy Silverado and GMC Sierra crew cab
2003-2007 Chevrolet Silverado and GMC Sierra extended cab
2007 - 2014 GMC / Chevy Front Door Speaker Install | Sierra Silverado Avalanche Tahoe Suburban Yukon - YouTube
2006 chevy silverado crew cab - change out rear door speakers without adaptor - YouTube