There is you and Bill_the_PA from Canada that have them working he had the dealer turn them on.. Where when looking before to see if I could I only had the option of having the delay enabled or disabled.. Didn't try to see if the disable would leave them on all the time as the wiring looked like it wouldn't.. So I did my mod which worked out better for my use as I only needed the rear one on all the time.

 

the dealership hooked up their computer to the PCM I'm assuming. They told me there were many drop down menus and one of them allowed for always on. You don't need more then me to confirm this and I'm sure all F150 are the same. Just saying !!

 

Only need a USA truck that had the same thing done as yours..