I never installed them. Was just gathering parts and then decided not to use them. There is a switch from Escape that works to run them. I'm sure you could search the thread and read all about it.
Removed from my '23 XLT. Pleather wrapped heated wheel. Currently has European switches in it from the Euro Fiesta ST wheel that I swapped on to the truck. You will need to swap out to US spec switches. It was removed at 1200 miles and is like new. Selling for ~$450 new. Asking $375 or best offer.