The extra in bed seven pin plug is pretty easy to install. You literally uncouple the back of the stock one at the bumper, plug in the new one to that and it has a pigtail for the second one so there is not a bunch of wire splicing or anything like that, pretty much plug and play. Mopar makes one as does Curt and a couple others. Iirc I used a Curt and it was $59 or something like that. Only thing was drilling the hole in the side of the bed but it goes easy enough and fortunately it is not like a bolt hole that needs to be exact so if you are off it won't matter. Plenty of room between the inner and outer bed wall to reach up in there and feed the stuff up to the hole
