Shop Nilight 4 Pin Trailer Wiring Harness Kit 56403 Vehicle Standard 4 Way Connector Custom for 2018 2019 2020 2021 2023 2024 Volkswagen Tiguan Simple Fit Tow Hitch Harness in high quality. No cutting or splicing factory wire. Plug and play harness. This trailer wiring harness kit plugs into existing factory wiring on your vehicle and equips it with a standard, rear 4-pin trailer wiring connector for plugging in and towing a trailer.