Connecting 4-Way From Bike Rack to 5-Way on 2010 Volkswagen Jetta SportWagen
Updated 02/03/2026 | Published 06/29/2024
Question:
Have a 2010 VW Jetta Sportswagon with flat 5-pin tail light connection, 5 wires red-grey, purple-grey, tan, green-gray and blue gray. Can you advise correct wiring harness for use for bike rack which has tail lights.
asked by: Debbie
Expert Reply:
Hi Debbie; does your bike rack already have some kind of wiring harness on it? Typically a bike rack will have a 4-way installed when it has lights. The 4-way connector will actually be able to plug into the 5-way on your vehicle. If you only have loose wires you can add attach a 5-way to the bike rack wires using # HM37908. The blue reverse wire won't be used so you can cap it off.
Product Page this Question was Asked From
Hopkins Wiring Harness with 5-Pole Flat Trailer Connector - Vehicle End - 5' Long
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Vehicle End Connector
- No Converter
- Universal Fit
- 5 Flat
- Plug and Lead
- Splice-In
- Hopkins
more information >
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Robin H.
2/3/2026
Hey Debbie, how did things go with wiring your bike rack lights to the 5-way connector on your Jetta? Your update could make it easier for the next person working on a similar setup.