Originally Posted by cosmo9404
Hello, I bought a new RV light for our 66 Caravel. It comes with one black wire, two additional black wires already tied together with a wire nut, and a ground. The Caravel has one black wire and one white wire. How do I connect it to the Caravel wiring?
Connect your coach black wire to the single black wire of the fixture. Take the bare copper ground from the fixture and connect to the white coach wire and you're there!
The trailer skin is actually a ground so the screws through the fixture will be an additional ground. The 2 wires that are currently wire-nutted together give you continuity through your switch and the ability to interupt the current.