Been a long while since I've posted. Got a new truck today. Went to install some knock off ridgid looking lights under the bumper to toss out some light when I'm backing up. Tried wiring them to the reverse bulb in the taillight and the truck picks up on the voltage and won't send power. I then read on some forums that the middle wire in the towing 7 pin is the wire for auxiliary lights for your trailer. Spliced into that and still nothing. The older trucks were easier to work on with less safety features and computers. What's going on here? My truck is a 2016 I'm trying to do the same thing in this photo but to my 2016.