I just bought a 2021 Aviator and so far so good. It has the Class IV trailer towing package which includes the hitch and lights connectors, both 4 & 7 wire, but I don't seem to have a trailer brake controller and I don't see any place where an OEM controller might go. Am I stuck with going with an aftermarket controller and if so does Ford (Lincoln) sell a wire & connector kit for an aftermarket controller ? On my 2015 Yukon that I traded in for my Aviator there was socket on the inside fuse block that was made for wire harness that was supplied with the Yukon from the factory. Does Ford do the same thing and I just didn't one or do I have to buy one from the dealer ?