Kia Sedona Trailer Wiring | etrailer Curt T-Connector Vehicle Wiring Harness Installation - 2017 Kia Sedona. Today on our 2017 Kia Sedona. We're going to be taking a look at and showing you how to install the Curt 00:00:05 T-connector Vehicle Wiring Harness for a factory tow package with a four point flat trailer connector, that's going to be part number C56332. Kia Sedona Trailer Wire Harness and Connector - Best Order Kia Sedona Trailer Wire Harness and Connector online today. Free Same Day Store Pickup. Check out free battery charging and engine diagnostic testing while you are in store.