06 beaver Monterrey bake controler wires location

I was putting a auto reset 12V breaker in my back electrical run box today and there was a unused plug with several wires in there that I had never noticed before. Did not check the colors but there's a good possibility they are the home-run wires I could not find before.
The plug in the dash was a white one with four wires... taped to the back of a big bundle of wires above the back of the radio.

thanks and very good idea

I spent hours looking for mine... never did find them at the back. With air brakes there is no trigger on the brake pedal and no wire to get the signali from the front run box. I ended up mounting mine in the engine compartment where it is easy to have everything you need. Once the gain is set there is no reason to change.