Same issue here! I have just the 2.4 kw version. Screen notices I plugged something in and asks if i want to give the outlet power.
it wont power a simple lightbulb
This is the harness that came with my truck. I didn’t see the stickers but didn’t look too long. It looks like you need to mount a sensor on trailer and run the cable up to the hitch.
My 2019 Raptor I used this dongle to tap into my rear view mirror. I just had to determine which wires were positive/negative.
I would not want to replace mirror in the new truck cuz It has tech for the auto pilot...