I'm installing a break controller in a 2000 f-250. I dont have the adapter and i cant find one locally. Dont have time to order one either since the truck and trailor is leaving thursday for Maine. I saw the gray harness up in the dash but it will be kind difficult to tap into the wires with out taking apart the dash....i noticed 4 wires down by the diagonistics plug that were taped up from the factory and are red, white, black, and blue....any chance they could go the same place as the ones in the gray connector? Thanks