I'm having a problem with the elctrical connector from TV to trailer. First, it is very hard to push in all the way. I have had to resort to a block of wood and a hammer. Then, once it is in all the w...
Dielectric grease goes right on the pins inside the tow vehicle side. The only problem is that grease will also get on the trailer half of the plug and probably on your clothes in the end.
I also had intermittent connection issues and messed with it for a whole season. I finally replaced both sides of my plug in the last year and now everything works.