The REDARC Tow-Pro TPH-025?pig-tail wiring harness is an universal harness that provides the ability to connect the?Tow-Pro Liberty electric brake controller?into a wide range of vehicles. The Tow-Pro Wiring Harness contains fitting instructions and the loom with compatible connector. The Tow-Pro pig-tail wiring harness allows you to connect the?Tow-Pro Liberty 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 then plug the other end to the factory fitted connector behind the vehicle dash. Tow-Pro Liberty install into Toyota 4Runner Installing the Tow-Pro Liberty into a Toyota 4Runner? Read?this tech tip?to find out how.