Just had a tow hitch and 7 pin harness installed today at a Kia dealer . I picked up a curt echo trailer brake controller from camping world and it took 30 seconds to connect and setup. I have been lurking here for the last month and noticed a lot of people couldn't figure out how to get a 7 pin setup or find the manufacturer parts. Here is what you need minus the brake controller. Service adviser said these will also work on a 2020. Paid about $900 with labor.