I have contacted a Sundowner dealer and Sundowner corp and still don't have my answer......does anyone have a 1990 Sundowner with the 7 point (large) plug that can tell me the wiring diagram to hook it up? I'm about ready to just take it to someone and have it done! We've got the blinkers and taillites figured out. The rest of it will take some more work...thought if someone had the color coding it would save me time and possible $$$$$$$$$$$Thanks for the info.