4way trailer side:

yellow wire left brake/turn
green wire right brake/turn
brown wire tail/tag/marker light
white wire ground

truck side is dependent on the mfr of the converter you bought, so a generic wiring diagram is worthless.

I go to the dside rear light assy and use a test light or multimeter to find the tail, turn, and brake light wires and tap the lside converter wires to those. then I pull the pside and find the r turn wire and tap that. Done. Since the taps are all within the bodywork, corrosion risk is minimum. I leave wire routing in the body as an exercise for the student....

Last edited by fasteddy; 07/30/10 12:21 AM.
Not responsible for advice not taken...