Bscott

Thank you.. Yes, the numbers you mentioned were what I found on the outfeed wires. I'll check in the area ahead of the power relays for their termination point. Connecting new wires to the back of the switches will work too, just trying to determine where the current wires terminate. Thanks so much again for pointing me in the right direction.

On a 2004 vision sleeper cab tractor: I'm trying to locate terminal points that are fed by the two aux. electrical power switches (battery symbol on one, key symbol on the other). I understand that the key symbol switch only provides power with the key on, and the battery symbol switch provides power at any time. I want to use these switches to power certain items on a trailer. It seems they each have a power supply wire coming into them, and another wire feeding back out....Where does that outfeed wire go??? On the firewall, there is a terminal/stud bar arrangement that feeds the seven-wire trailer cord. This bar has 3 additional studs. I was hoping two of these additional three studs were powered by the two aux. switches....but so far, I've been unable to get any power at these studs with a test light. Can anyone tell me if I'm on the right track?