Winch Wire Harness - WARN Winches, ATV Winches, and Winch Winch Wire Harness. WARN has a large selection of Winch Wire Harness Kits that make it easy to install and wire your winch. Warn Quick Connect ATV Wiring Kit. Power leads with Quick Connect plugs provide a safe and simple power source for portable winches. Warn Winch Wire Harness - 4wheelparts Warn Winch Wire Harnesses come in several different cable lengths to meet a variety of attachment needs. A Warn Winch Wire Harness can be used by attaching the power connections to the front, back, or both ends of the ATV. Connection and disconnection is made simple by convenient plugs that attach to the battery power source.