Plugs into main under dash harness and turn signal harness exiting steering column. Runs under left scuff plate and above left wheel well housing. Supplies power to Taillights, license plate light, back up lights, gas tank sending unit and interior quarter panel Lights on fastbacks. Also includes back up light wiring. Features protective outer weave type covering like original. NOTE: This harness does not include wiring for the Fuel Sending Unit and Courtesy and Trunk Light. That runs down the passenger side rocker. That harness is sold separately and available under part number C8ZZ-1405-FSU.