Sorry if this has been posted but I can't find my exact issue. I have a 05 4.7l durango without any tow packages. I've installed the 4pin set up that runs a fused line to a power source (10 amps). I recently got a new trailer for work so I got the 7 pin conversion kit. I got the brake controller wired and working and just hooked up the 12 volt line for interior lighting on a 30 amp auto reset circuit breaker I read it's supposed to be 40 amps but couldn't find an auto reset circuit breaker in 40 amps. The last thing to hook up is the reverse line but I don't wanna melt the truck. Basically how do I wire this can I just tap into the driver side line (white/light green wire??) Or do I need a fuse or relay and if so how to do that. Right now there is just a reverse beeper but I might add lights.