Went crazy and got my first boat yesterday. Nice little 2003 Sun Dolphin 12 ft jon boat with a trailer and trolling motor. It will do nice for what I want it for. Having a couple of issues though and starting to get a little frusterated! Wiring harness on the trailer was messed up so I put a new adapter on the trailor side. Ended up draining the battery on my truck instantly. Jumped the truck and she is back up and running. My problem is that there are 5 wires coming off of the trailer instead of the normal 4. I have White, brown/green, brown/yellow, green, and yellow. Anyone know how I could wire this into the standard 4 wire harness effectively? Thanks brothers and sisters... looking forward to getting on the water again soon!