Recommended Trailer Wiring Harness for 2012 Audi Q7 with Tow Package

Question

Question:

I have a 2012 Audi Q7 with towing package but I recently tried to rent a trailer and the lights wouldnt work. Is there a wiring adapter for the lights on an Audi? The Audi dealer was clueless and the Uhaul guys didnt have anything onsite. Any help is appreciated, thank you.

asked by: Andre

1

Helpful Expert Reply:

To install a fully functional 4-Pole flat connector to connect with and activate the signal lights on the trailer, I recommend the Hopkins Plug-In Simple Wiring Harness # 41155. This is confirmed to fit your 2012 Audi Q7 with the factory tow package and will install by plugging directly into the OEM tow package wiring harness. No cutting or splicing is required.

I have attached the installation details for you to check out.

expert reply by: Chris R

1

Answer 1

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 2

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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Answer 3

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 4

The main difference between the Curt Trailer Hitch Receiver part #C13416 and the EcoHitch Hidden Trailer Hitch Receiver part #EH97FR is that the EcoHitch has a completely hidden cross tube whereas the Curt cross tube will be visible from the rear of…

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Answer 5

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 6

The OEM prep package consists of 4 "pucks" in the bed of the truck that will allow you to drop in puck style hitches for easy installation and removal, that gives you a completely clear bed when not in use. The B&W Companion OEM 5th…

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Answer 7

Yes, it will work. You'll just need to cut the Lance 6-pin connector out and rewire it into the etrailer Trailer Wiring 7-Way Upgrade Kit w/ Junction Box and RV Style Connector item #e99011. Here are the individual functions of that Lance 6-pin:…

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Answer 8

Hey Ricardo! Yes, the Curt Trailer Hitch Receiver #C82RJ is the hitch Curt is working on for the new 2027 Telluride. This is a pre-order since Curt hasn't finished the design. It does not include wiring. The wiring harness for the 2027 is also up…

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Answer 9

Hey Melanie. The reason you can't find a replacement for your GE ARC15AACBL2 15,000 btu air conditioner is because they phased them out. In 2025 all RV AC systems had to change over to a new coolant called R32. This was a EPA mandated decision.…

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Answer 10

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 11

Since wire color codes are NOT universal, we always recommend wiring by function, rather than wire color. If you look at the Trailer Wiring FAQ article I have linked you to, you can see some diagrams showing the proper way to wire a vehicle and…

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Answer 12

Hey George, for your 2026 Toyota RAV4 Hybrid we have the Curt hitch part #C34FR62ZY as a confirmed fit but it's on a little bit of a backorder at the moment which is why you don't see any hitch options in our fitguide. The hitches from…

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Recommended Trailer Wiring Harness for 2012 Audi Q7 with Tow Package

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