I'm looking for some answers on prepping my 18 JKU for basic towing. I've seen some threads about this topic, but most don't seem to cover up to the '18 model. How do I know if this Jeep came with a tow prep package? Was that offered in '18? Is reprogramming the computer part of that and if so what exactly does the reprogramming cover? Can it be done with JScan if so? Can someone explain to me how wiring up a brake controller works on the JK (I know how the device works, I mean if anything specific to the JK). I know the Mopar 4 pin harness was added, but other than that I don't know what else.