Recommended Trailer Wiring Harness and Other Parts to Tow a Trailer With a 2017 Audi Q7
Question:
Need wiring harness receiver
asked by: Tom
Expert Reply:
It sounds like you're looking for a trailer wiring harness for your 2017 Audi Q7.
If the Audi came with the factory tow package but doesn't have the connector you can use the Curt # C55774 which will provide you with a 4-way and 7-way connector. This harness plugs into the tow package wiring harness which will be under the rear of the vehicle.
If you don't have the tow package I recommend the ZCI Harness # 119250KIT. This installs by clamping to the Audi's existing wiring without splicing into it. Therefore there's no threat to the vehicle and it won't void any warranties with Audi. This gives you a 4-way connector.
If the trailer has a 7-way on it use the adapter # 37185 in conjunction with the ZCI 4-way. Just cap off the extra wires of the adapter. To power a trailer's brakes, if you have them, you'll need a brake controller. With your Audi I recommend using the Curt Echo # C51180. This installs in-line with the 7-way connectors of the trailer and Audi and is controlled by your smartphone. So again, there's no splicing into the vehicle's wiring. You will need to run a wire from the # 37185 to the positive side of the vehicle's battery to power the Echo. Use 10 gauge wire # 10-1-1, which is sold by the foot, with a 40 amp circuit breaker # 9510. Or instead you can use our kit # ETBC7L that includes everything with the 7-way adapter.
If you also need a trailer hitch receiver, I recommend the etrailer # e88KR. This s a 2 inch, Class III trailer hitch custom designed for your Q7.
Products Referenced in This Question
ZCI Circuit Protected Vehicle Wiring Harness w/ 4-Pole Flat Trailer Connector and Installation Kit
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- Converter
- Universal Fit
- 4 Flat
- Tekonsha
more information >
Adapter 4-Pole to 7-Pole and 4-Pole
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 4 Flat
- Plug and Lead
- 4 Flat
- 7 Round - Blade
- Hopkins
more information >
40 Amp In-Line Circuit Breaker - Perpendicular Mount Bracket
- Accessories and Parts
- Wiring
- Circuit Breaker
- 40 Amp
- Pollak
more information >
Curt Echo Wireless Brake Controller - 7-Way Plug Mount w/ Bluetooth App - 1 to 2 Axle - Proportional
- Trailer Brake Controller
- Proportional Controller
- Hidden
- Up to 2 Axles
- Smartphone Display
- CURT
more information >
etrailer Trailer Hitch Receiver - Custom Fit - Matte Black Finish - Class III - 2"
- Trailer Hitch
- Custom Fit Hitch
- Class III
- 700 lbs TW
- 7000 lbs GTW
- 2 Inch Hitch
- Concealed Cross Tube
- etrailer
more information >
7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Product Page this Question was Asked From
Curt T-Connector Vehicle Wiring Harness for Factory Tow Package - 7-Way and 4-Pole Flat Connectors
- Custom Fit Vehicle Wiring
- Trailer Hitch Wiring
- No Converter
- Custom Fit
- 4 Flat
- 7 Round - Blade
- CURT
more information >
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