Today we're going to be taking a look at, and I'm going to show you how to install, the Tekonsha T-One Vehicle Wiring Harness with 4-Pole Flat Trailer Connector, on our 2019 Jeep Cherokee. This is what it's going to look like when it's installed. It's going to live outside of the vehicle, it's going to give us our 4-pole plug, it's going to give us all of our proper lighting functions, both turn… see more >