Originally Posted by TJP
I'm not understanding the need for the relays confused

One is still going to have to use a plug to disconnect the trailer from the car unless I'm missing something.

I also don't understand the need for a #4 to 6 gauge wire confused

Unless your trailer looks like the house in Christmas Vacation I'm totally baffled. shruggy

Read his post again scope, he wants to isolate the trailer lights from his stock wiring system with relays wrench work

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)