How do I hook auxiliary lights to the auxiliary switch or spare switch on a 2000 Peterbilt 378?

You could just wire you own switch in for the lights. You can mimic this diagram: http://s879.photobucket.com/albums/ab358鈥?/a>





Instead of using an L.E.D. tube, you'd just be wiring in the auxiliary lights. It's just easier and safer this way b/c some circuits run on a certain power draw and if it's disrupted it can have dire consequences. If you need ANY help just e-mail me. Good luck!