Tekonsha / Tow Ready brake control wiring adpaters are designed to make installation quick and easy. This 2 plug brake control harnesses simply plugs into the OEM harness under the dash and then into the rear of the brake control. (There is some drilling required). Fits the following factory pre-wired tow package vehicles: 1999 - 2002 Chevrolet Silverado Truck (All Styles), 1999 - 2002 GMC Sierra Truck (All Styles), 2000 - 2002 Chevrolet Suburban (New Body Style with Amber Turn Signals), 1999 - 2002 Chevrolet Tahoe (New Body Style with Amber Turn Signals), 2000 - 2002 GMC Yukon (New Body Style with Amber Turn Signals), 1999 - 2002 GMC Yukon XL (All Styles), 2001 - 2002 GMC Yukon Denali (New Body Style with Amber Turn Signals), 1999 - 2002 GMC Yukon XL Denali (All Styles), 2002 Cadillac Escalade (Including EXT), 1999 - 2002 Chevrolet Avalanche (All Styles). 1 per package.