Review on Leisure Cords Heavy Duty 7 Way Plug Trailer Cord - 4 Feet, Weatherproof (4-Foot) by Matt Chirila

Fitting a towbar into something you would never normally call a tractor. I run all the wiring from the car to the junction box and then I have a nice clean insulated wire harness that goes to the hitch. I cut off the trailer side connector and left the car side connector attached to the end. The junction box has entries (with extra feedthroughs!) for wires from all sides. There is enough space in the box to work and store extra cables that turned out to be long. The design looks solid, the cable is thick and heavy. They even thought of little things like metal ties inside the box to hold the wires (prevent them from being pulled out) and paint the wire ends for extra visibility. Very well done.