What are these wires for?
On F250 (06) there are four wires coming out of loom at the fire wall on diver side (under hood) one blk, white,red & blue?
Forum Discussion
I tend to agree with with jerem0621. On the Ford pickups I've had with tow package (prior to Ford having an OEM brake controller in the dash) there was a pre-wired socket under the dash near the steering column and they came with a pigtail to adapt the aftermarket brake controller to that socket.
