I know this isnt exactly diesel related but I seem to get more effective responses here than on the bullnose forum. So anyways here's my question. I bought one of those brake controllers from NAPA and I wanted to know if a 1985 F250 would have the preconnect plug under the dash or if I have to wire it myself? I only have the 4 way plug at the moment but I also got a 7/4 way combo unit too add also

 

You're on your own for the wiring, these trucks weren't configured.

 

Oh yay, this should be so simple

 

shouldn't be too hard......

here is a diagram that might help... not 100% sure where those connectors are located on the 85