2013 Honda Ridgeline Trailer Wiring | etrailer Fastest shipping available and a lowest price 2013 Honda Ridgeline trailer wiring guarantee. Expert lifetime technical support on all purchases. Complete 2013 Honda Ridgeline Trailer Wiring installation instructions and customer reviews. Call 800-298-8924 to place your order or order online at etrailer. 2013 Honda Ridgeline Hitch Wiring | Harnesses, Adapters Honda Ridgeline 2013, T-Connector by CURT®. For Models without Tow Plug, 3-wire System, Location: T1/T2. This provides all you need to connect a trailer to the tow vehicle. Generous length allows plenty of wire.