^This. On any model, if you have a 7 pin, tow hitch, and then add a brake controller under the driver dash (below part), you'll be good to go for towing a trailer with brakes.
If you're towing a single-axle trailer with no brakes, then you won't need the above part, your trailer harness will then likely attach to the 4 pin which gives you turn signal/brake/turn lights.
Do the controllers shown plug into the Jeep's wiring harness? .....or do you need to install via wire terminals?
I have an old cheapie controller now.....I could take it along....but if I can get a plug and play controller (on both ends) it may be time to upgrade.
Anyone tried one of the cushioned ball mounts for towing? Never needed one for use on the truck you don't get a lot of noise because it's so far behind the cab. But I am considering for the jeep, especially my commander because you hear every little bit of play in that hitch when towing anything.