My trailer lights and brake signals quit a month ago. I received the over the air update last weekend and hooked up my trailer to test afterwards. Everything is now working correctly.
If you find a source for the harness all I really want is the turn, stop, park wires to connect a tailgate bar light. Just did not want to tap the original harness wiring.
I purchase this kit so I would not have to “tap” the harness to put in a tailgate light bar. Have not put it in yet but plan to this week. When I take it apart I will snap a picture also.
56477 4 Pin Trailer Wiring...
https://www.amazon.com/dp/B0F9Z38CY2?ref=ppx_pop_mob_ap_share
Saw this thread and had to chime in. Will turn 76 in a couple of weeks and have had my 2025 2.0L FWD XLT for about 3 weeks now, moved up from a 2001 Ranger club cab as my Daily. But still have the 2011 GT500 that we do land speed racing and open road racing.