Trailer Plug Wiring 7 Way : Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think) | etrailer.com / Just don't go all the way through so you can tear off the rubber without cutting into any of the 7 wires inside.

Trailer Plug Wiring 7 Way : Wiring Trailer Lights with a 7-Way Plug (It…