Rob: Rob here etrailer.Com, and today we're going to be taking a look at the Tekonsha T1 vehicle wiring harness on our 2019 Nissan Frontier. Now, our Tekonsha wiring harness is going to provide us with a four-pole flat trailer connector, that way we can get all the required lights to get down the road safely, like our taillights, our turn signals, and our brake lights. And when… see more >