Regardless of you need to move house, go on holiday with a caravan, dispose of green waste, or have a hitch is fairly handy. On this page, we will describe the electrical connection of a trailer hitch of a Audi A5 . In fact, regardless if the set up process is not complex, it is required to explain some details to consider this task without any issue. First of all, we will find out what the electrical wiring harness of your car hitch involves, then, in a second step, how to make the electrical connection of the hitch of a Audi A5 .
What’s the wiring harness for a Audi A5 hitch trailer?
Why do we have to connect a wiring harness with the hitch trailer of a Audi A5?
So we will start our article by explaining the basics of a wiring harness of a Audi A5. In order to figure out how it functions, you must previously figure out its necessity. Whether you have a trailer or a caravan to tow, it is fundamental and above all mandatory by the highway code to respect certain laws, 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 satisfy all the electrical requirements, you will need to install a wiring harness connection on the hitch trailer of your Audi A5 . We will focus on this in this article, if you want to find out how to install the hitch of a Audi A5, please find out our article on this subject.
What is the electrical connection of the trailer hitch of a Audi A5?
We will now quickly describe how the electrical connection of your hitch functions. The connection uses the 12-volt current from your car to power the hitch lights on your Audi A5. There are two different systems of electrical connection for a hitch, here they are:
- The 7-pin electric plug for a Audi A5 trailer, 7 pins : This is the traditional plug that will be identified on all Audi A5 hitches. This electrical connection will allow you to transmit all the lighting functions necessary for the rear signalling of your trailer, you will locate 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 A5: This plug system is mainly used for caravans that involve 12 volts inside to supply the different electrical devices in the cabin. This type of connection requires 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 A5?
To end this article, we will quickly describe you how to make the connection of the wiring harness of your Audi A5 .
How to make the connection of the wiring harness of an old Audi A5?
To mount the wiring harness of an old Audi A5, you will have to go and get all the required cables in the rear lights of this one. We recommend you to call in a car electrician to do 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 A5 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 A5?
For modern Audi A5s, the wiring harness is much less complicated to connect:
- You can use a multiplexable box, you will locate particular ones for your Audi A5 and universal models. It’s up to you to select according to your budget, know that a universal version costs between 30 and 60 euros.
- Take out the trunk lining from your Audi A5 so that you can route the cables from your box to the front of your Audi A5 and connect them to your fuse box.
- Install the case in the trunk effectively.
- You don’t have to retrieve your cables from the trunk and connect them to your outlet.
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How do you hook up the power to a trailer on Audi A5?
Finally, to end this article we will quickly describe you how to make the electrical connection of a caravan on your Audi A5 . To get this done you will inevitably have to go through one of the previous steps, it’s up to you to select 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.
To find more tips on the Audi A5, take a look at the Audi A5 category.
