I've got an old trailer that I bought that the wires on it have been spliced in a number of places but the tail lights work well. So I thought for preventative maintenance, I would replace all of the wiring. I bought a standard 25' of four wire with a flat four wire flat connector. I just noticed that each of the tail lights have 3 wires coming out of them, a red, white and black.
I know that the green is the right turn, yellow is the left turn and the brown is the tail. What is the correct way to hook up this up to the red, white and black coming out of the existing lights?
Thanks for your help.