Kelsey Hayes brake controller

[Bob87Burb]

I have a Kelsey Hayes brake controller in my 87 Suburban, but it was never wired. I'd like to wire it up, but I can't seem to find any diagrams for it. I did a Google search, and searched here, to no avail. Anyone have any info?

Thanks in advance,
Bob

 

[Pookster]

Got a pic? Sometimes the units are manufactured by someone else.

 

[Bob87Burb]

I don't have a pic, but I think I have it figured out. There's 4 wires, blue, white, red and black. Blue is power to the trailer brakes, white is chassis ground, red is to the brake switch, black is fused to bat +.