The GM Speaker Adapters and Wiring Harness package is designed for 6.5" speakers and includes 2 pairs of speaker adapters. 

- Fits Various Chevrolet, Cadillac, Buick, GMC, and Saturn Models: The package is compatible with the following vehicles:

  - Chevrolet: 2007-2013 Avalanche, 2005-2010 Cobalt, 2011-2013 Cruze, 2008-2012 Express 1500/2500/3500, 2009-2012 Express 4500, 2006-2011 HHR, 2008-2012 Malibu, 2007-2013 Silverado 1500/2500HD, 2007-2013 Suburban 1500/2500, 2012-2013 Sonic, 2007-2013 Tahoe, and 2009-2012 Traverse.

  - Cadillac: 2007-2013 Escalade, 2007-2012 Escalade ESV/EXT.

  - Buick: 2008-2012 Enclave, 2006-2011 Lucerne, 2012-2013 Verano.

  - GMC: 2007-2012 Acadia, 2008-2012 Savana 1500/2500/3500, 2009-2012 Savana 4500, 2007-2013 Sierra 1500/2500HD/3500HD, 1995-2013 Yukon, 2000-2013 Yukon XL1500/XL2500.

  - Saturn: 2007-2009 Outlook.

- Speaker Adapter Brackets: The American International GMSB356 Speaker Adapter Brackets are included in the package. These brackets allow you to mount 6.5" speakers in the factory speaker locations of the compatible vehicles.

- Wiring Harness: The package also includes a wiring harness, which simplifies the installation process by connecting the aftermarket speakers to the factory wiring harness without the need for cutting or splicing wires.

This package provides a convenient solution for upgrading the speakers in your GM vehicle. It ensures proper fitment with the included speaker adapter brackets and facilitates a hassle-free installation using the wiring harness.