After comparing the as-built configurations I determined that my 2025 XLT 302a having the RL3T-13A409-BBE harness requires replacement with the RL3T-13A409-BEE which is part number rl3z13a409e
Then you just need the two OEM pigtails, switch, and lights to compete the install along with the 3...
This thread is amazing!
I’m working on adding the bed lights to my 2025 302a with incandescent tail lights, with inverter.
My OEM harness is the RL3T-13A409-BBE (RL3Z13A409B). Parts.ford.com describes this harness as:
Usage: 01/08/2024, F150, Crew Cab, Tail lamps - Level 2, Kansas City Plant...