I have been getting my (new to me) 2000 Windsor 40' ready for towing my race trailer, I identified a plug at the rear of the Windsor with 6 wires,
White =ground
Green =right turn
yellow =left turn
Red = stop light
Brown =marker light
And there is a Grey wire that I do not know what is. I would like to use the Grey wire for my brake control wire if it runs to the front of the Windsor. My question is does anyone have a schematic that shows how the grey wire runs? Any help would save me a lot of tracing.