If you need to move house, go on vacation with a caravan, dispose of green waste, or have a hitch is fairly handy. In this article, we will show you the electrical connection of a trailer hitch of a Audi Tt . In truth, regardless if the set up process is not complex, it is necessary to explain some points to consider this intervention without any problem. Firstly, we will discover what the electrical wiring harness of your motor vehicle hitch consists of, then, in a second step, how to make the electrical connection of the hitch of a Audi Tt .

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What’s the wiring harness for a Audi Tt hitch trailer?

Why do we have to connect a wiring harness with the hitch trailer of a Audi Tt?

So we will commence our content by explaining the basics of a wiring harness of a Audi Tt. In order to understand how it works, you must previously understand its necessity. If you have a trailer or a caravan to tow, it is necessary and above all mandatory by the highway code to respect certain protocols, here they are:

  • A solid chassis for the trailer…
  • Wheels that fit.
  • An electrical connection.
  • A license plate in plain sight.
  • A stoplight repeater.
  • A traffic light repeater.
  • A blinker repeater.
  • License plate illumination.
  • A fog light repeater.

In order to meet all the electrical regulations, you will need to install a wiring harness connection on the hitch trailer of your Audi Tt . We will focus on this in this post, if you want to find out how to install the hitch of a Audi Tt, please discover our content on this subject.

What is the electrical connection of the trailer hitch of a Audi Tt?

We will now fairly quickly show you how the electrical connection of your hitch works. The connection uses the 12-volt current from your motor vehicle to power the hitch lights on your Audi Tt. There are two different systems of electrical connection for a hitch, here they are:

  • The 7-pin electric plug for a Audi Tt trailer, 7 pins : This is the traditional plug that will be determined on all Audi Tt hitches. This electrical connection will enable you to transmit all the lighting functions needed for the rear signalling of your trailer, you will find a plug for each function (left and right indicators, ground, fog light, left and right position light, left and right brake light).
  • Electrical connection for caravan with 13-pin plug for Audi Tt: This plug system is principally used for caravans that require 12 volts inside to supply the various electrical equipment in the cabin. This sort of connection necessitates the use of an adapter. The extra pins will bring the 12 volt power permanently (to recharge a battery in the caravan) and the 12 volt power in use (to use the 12 volt equipment when the car is switched on).

How do I hook up the wiring harness of a Audi Tt?

To end this content, we will fairly quickly show you you how to make the connection of the wiring harness of your Audi Tt .

How to make the connection of the wiring harness of an old Audi Tt?

To mount the wiring harness of an old Audi Tt, you will have to go and get all the necessary cables in the rear lights of this one. We advise you to call in a motor vehicle electrician for this intervention because it is complex, but we will nevertheless summarize the most important steps to be carried out:

  • Take out the trunk lining from your Audi Tt to access the rear light unit.
  • Locate the wires that correspond to each of the taillight functions.
  • Connect them to the lugs on the wiring harness on your hitch.
  • Close the whole thing down.

How do you connect the wiring harness of a recent Audi Tt?

For new Audi Tts, the wiring harness is much simpler to connect:

  • You can use a multiplexable box, you will find particular ones for your Audi Tt and universal models. It’s up to you to choose according to your budget, know that a universal version costs between 30 and 60 euros.
  • Take out the trunk lining from your Audi Tt so that you can route the cables from your box to the front of your Audi Tt and connect them to your fuse box.
  • Install the case in the trunk effectively.
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  • You don’t have to retrieve your cables from the trunk and connect them to your outlet.

How do you hook up the power to a trailer on Audi Tt?

Finally, to end this content we will fairly quickly show you you how to make the electrical connection of a caravan on your Audi Tt . To achieve this you will inevitably have to go through one of the previous steps, it’s up to you to choose the one that corresponds to your model and your budget. After you have done this, the last step will be to buy an adapter that goes from a 7-pin plug to a 13-pin plug so that you can benefit from the 12 volt current in your caravan. These adapters come at different prices, you will need to count between 15 and 40 euros. All you have to do is plug it into your 7-pin plug.

If you have any further questions about the Audi Tt, do not hesitate to consult our Audi Tt category.