The REDARC TPH-018 Tow-Pro Wiring Harness offers the ability to connect the Tow-Pro Elite or Tow-Pro Classic Electric Brake Controller into an existing Hopkins Brake Controller Harness. 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.• Main Cables: 6" long Comes with fitting instructions and the loom with compatible connector 6" long main cables | Tow-Pro Brake Controller Harness for Hopkins Wiring Harness, TPH-018