Thanks to
@FM45 and his write up, I was able to finish this ‘mod’ over the weekend. I will say doing this on my truck with the MFTG was a pain in the **** for sure. The harness it self was a beast to get out and get back in. The harness has a plug that attaches to both sides of the doors and the one on the right side runs along the metal frame of the tailgate which really was a pain to get to let alone uninstall all the push clips. After a lot of cussing and cut fingers and hands I was able to get it done.
Few things to note. Pin8 on my ‘21 was a orangish color as shown in the first pic. That is the wire that I cut and tapped the pigtail that feeds to the bedlights and reverse light.
I tested all the wires for the bedlights and the red one is the one you want to splice into (2nd pic)
For the reverse light, the white wire with purple stripe, which is the 3rd from the left, is the one you will tap into (3rd pic)
I thought about not doing this and just tapping into the bedlights but I’m glad I did. The light output at night is much better than without the LED bar.
I lucked out and was able to buy the MFTG handle in my color from a member here. The harness for the MFTG with surround view is 68531014AB and the LED bar is 68509246AA. You will need to reuse two of the small screws to be able to attach the light bar to your new handle.
Yes this ‘mod’ was a little pricey since you have to buy a whole new harness but I think it’s worth it. I was always jealous have Fords have this similar light and also jealous the added it to our trucks a year after I bought mine
Having the extra light at night is nice and even better when reversing.
Hopefully this is helpful for those with the MFTG.