The REDARC TPH-010 Tow-Pro Wiring Harness offers the ability to connect the Tow-Pro Elite or Tow-Pro Classic Electric Brake Controller directly to your GMC, Cadillac, or Chevrolet factory towing package connector. The Tow-Pro Wiring Harness contains fitting instructions and the loom with compatible connector. The Tow-Pro Harness allows you to connect the Tow-Pro Elite Electric Brake Controller to the vehicle's factory-fitted connector with an easy plug-and-play design. Simply plug one end of the harness to the electric brake controller connector and the other end to the factory-fitted connector behind the dash. This harness will also connect to the Tow-Pro Classic with a small modification. The Tow-Pro Classic does not have a mating connector and requires bare wires to be inserted into the brake controller instead.• Adaptor Harness Length: 6"• Tow-Pro Harness Length: 32"CompatibilityCadillac Escalade 2015-2016Chevrolet Silverado 1500 2014-2018Chevrolet Silverado HD 2500 2015-2018Chevrolet Silverado HD 3500 2015-2018Chevrolet Suburban 1500 2015-2018Chevrolet Suburban 2500 2015-2018Chevrolet Suburban 3500 2015-2018Chevrolet Suburban 2015-2018Chevrolet Tahoe 2015-2018GMC Sierra 1500 2014-2018GMC Sierra HD 2500 2015-2018GMC Sierra HD 3500 2015-2018GMC Yukon 2015-2018 Comes with fitting instructions and the loom with compatible connector 32" long harness | Tow-Pro Brake Controller Harness for GMC/Cadillac/Chevrolet, TPH-010