I know I’m late to this conversation but some really good comments here and I also just got a hitch installed on my 2019 Dodge Journey crossroad witch has led tail light and for the regulator 4 prong wiring harness i had to get one that brings in additional power because the leds don’t bring in the 12 volts or the amarage because they are all running off modules now so they can running lower amounts of power further more brings me to my questions because dealer ships can’t seem to answer my question so I’m forced the bring it here due to they want $500 to set up a brake controller. Now bring back my statement about using modules to just send enough voltage for signals I’m having a hard time trying to wire my brake controller in due to not enough voltage at the switch by the brake pedal. Also further more in to testing and finding out that the switch down by the pedal n longer runs the brake lights where do I find I need to wire this in to because my next step is to just run a wire from where the brake light wire is in the back of my car and run it to a relay then to my brake controller so it works. And on the note that anyone says using a relay to control a brake controller doesn’t think it will work i;ve tested it and it does work. Also I’m a big rid tech so automotive is slightly out of my domain
