The 2017 F350 has 6 upfitter switches, you can make 2 of them hot all of the time or move a fuse in the box under the hood and make all 6 only hot with key on. So I have #5 & #6 always hot.
#1) & #6) Are tied together with a 2 port cigarette lighter and 2 port USB under my seat right now. This way I can choose to charge my phone (with key on or off) when needed. Run the Wilson phone booster (with Key on or off) also my TST TPMS that I'm still running on the trailer for the heck of it.
So all of those components can be ran With the key or overridden and hot all the time if I choose, with the flip of a switch.
Key on #1) explained above
Key on #2) AirLift air compressor
Key on #3) 12V wire ran up to the top of the dash for Furrion Rear camera and radar detector
Key on #4) Trailer backup and side LED lights. Also come on when I put the truck in reverse
Hot #5) Always hot and Open at this time
Hot #6) explained above
Fun Fun