So your truck has a 4pin plug already installed?
You can use that kit to get you home. Just no brakes or 12V hot wire.
If you don't have any trailer plug on the truck and are trying to tap in, then there are some plug n play adapters you can buy or google what to hard splice in.
Idk if the new fords have trailer brake wires and 12v to the back of the truck?
Do you have the plug in option for the brake controller and OE adapter under the dash?
If so then the brake power wire should be at the back of the truck already. If not then you gotta wire the trailer brake controller in old school.