I located the grey plug taped up next to my steering column, everything was prewired. I had found a brake controller plug in the bag with my Winnie stuff. Just matched everything up with the cotroller and plugged in. Also in the rear (underneath) next to the spare tire was a wiring harness all wrapped up. All the lighting wires were labeled and a 10 ga Blue wire for the power to the 7 prong trailer connector.
Tim ,Retired Police Lt. 2002 Winnebago Adventurer+16' Trailer
Harley Road King and Heritage Classic+,Trik-L-start,Hughes Autoformer. Blue Tick Coon hound