They are a pain. I only have two on my 2017, but they can be tough to get apart. I clean the connectors when they are apart with Isopropyl alcohol (rubbing alcohol) and a Qtip. If you can find the small diameter Qtips, even better. The ones on the tailgate are easy when the tailgate is off, but the ones up under are tough. I guess a modification that would help would be to protect the connectors from the road grime with some sort of cover.