[lakenum09]

I have been looking for the installation instructions for 7P1055203 Touareg Trailer Hitch Electrical Installation Kit & Module. I have two Touareg's, 2011 and 2012. The 2012 is a TDI buy didn't come with a trailer hitch installed. My 11 VR6 does have the hitch and controller. Because the TDI is better for towing I want to move the hitch and controller from the gasser to the TDI. I checked and the TDI has the wiring preinstalled however I don't know where the three plug connector, see photo, is installed or if it's even installed on the 2011. And if anyone has a spare kit for sale I want to buy it.

 

[lakenum09]

A few months ago I was able to swap the trailer module from my 2011 to my 2012. I updated the coding in the various other modules to tell my 2012 that the trailer module was installed but I couldn't connect to the trailer module using VCDS. After looking at the wiring diagram and the wiring in the right rear of the Touareg, where the module is installed, I found the wiring splitter I originally asked about. It is a little further forward of the module, behind the right rear panel. Without instructions, I figured I would swap the connection at the split end. This allowed VCDS to connect to the trailer module. So my conclusion was that on the Touareg this splitter is not needed, it's already installed. It must be used on other models that need it. I hope this answers anyone's else curiosity and confusion about this part.

 

[lakenum09]

As long as you get the VW hitch there is no modification needed, after market hitches don't fit as well. You do have to pull the number cover off to install the hitch.