Can I Run the Power Wire to a Cigarette/Accessory Plug on the Curt Wiring Harness C56403?
Updated 05/23/2025 | Published 05/22/2025
Question:
2024 VW Tiguan Kurt Wiring Harness 56403 The installation of the power wire under the car body is a bit challenging. As the Tiguan provides a 20 amp cigarette/accessory plug in the third seat interior panel, can I simply tie into this circuit instead? I am anticipating just occasional trailer use.
asked by: Bob M
Expert Reply:
No, I am sorry Bob I can not recommend you doing that. We get this question all the time btw. The Curt T-Connector Vehicle Wiring Harness item # C56403 needs a consistent power supply directly from your Tiguan's battery because of the sensitivity of the converter. Installing it any other way will void the warranty as well.
I have linked an installation video below that will give you an extremely brief breakdown of where and how the power wire was ran.
If you have any additional questions or concerns, feel free to throw them into the comment box below.
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- Powered Converter
- No Tow Package
- 4 Flat
- Plug and Lead
- Plug-In
- Hidden
- CURT
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Bob M.
5/23/2025
I was thinking of splicing into the accessory plug power wire by stripping it, soldering a piece of the black lead wire along with the 15 amp fuse. This solution results in a solid connection, not a circuit that is subject to interruption by plugging and unplugging an accessory plug. I will understand if you reply, that's not howe do it. Incidentally, this2018 video may provide more clear guidance on how to snake the power wire under the vehicle: 7Curt T-Connector Vehicle Wiring Harness Installation - 2018 Volkswagen Tiguan Video | etrailer.com00103. What do you think?