2 GM Headphones & Remote (sku 91) ,2002-2006, GMC Yukon,Sierra , Cadillac Escalade SRX,Chevrolet Tahoe, Silverado, Denali 2002 2003 2004 2005 2006, GMC Yukon,Sierra , Cadillac Escalade SRX,Chevrolet Tahoe, Silverado, Denali plus 2004,2005,2006,2007,2008,2009 Trailblazer and Envoy and Trailblazer and Envoy Denali models plus 2004,2005,2006,2007,2008,2009 Trailblazer and Envoy