Trailer rental firms insist that tow vehicles provide operating lights turn, tail and brake lights for every towed vehicle rented. Easy to do if the tow vehicle is wired that way, but a pain if it has separate turn and stop lamp circuits. John's solution is a pair of diodes, some quick disconnects and an inexpensive wiring harness. He used Schottky diodes for low- voltage drop, rated 3A to handle 36W of trailer lights. He then threw in a few quick splice connects for the rear tail light wires and the mate to the trailer's 4-Way Flat and was set quicker than he could say "You haul!" Oh, yeah be sure the vehicle and tow hitch can handle the trailer, cargo and tongue weight.
Trailer Lights Hookup Kit Parts List
Allied Part #
3A Schottky diode
Quick splice connector
Additional parts required: Champion Trailer # 4378 car side trunk connector
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