2019 Hyundai Tucson Trailer Wiring | etrailer Fastest shipping available and a lowest price 2019 Hyundai Tucson trailer wiring guarantee. Expert lifetime technical support on all purchases. Complete 2019 Hyundai Tucson Trailer Wiring installation instructions and customer reviews. Call 800-298-8924 to place your order or order online at etrailer.com. Hyundai Tucson Hitch Wiring | Harnesses, Adapters, Connectors When you tow with your Hyundai Tucson, you’ll have no problem making the electrical connection to any trailer with our selection of harnesses, adapters and connectors.