Westfalia towbar wiring kit on Skoda Fabia 2018

Hello,

Long time reader here, but now I stumbled on a problem I cannot solve myself. 

The car is a Skoda Fabia 2018 Manufactured October 2017.

I have installed a dedicated towbar and wiring kit from Westfalia, 317 114 300 113. Link to PDF can be found here: https://www.westfalia-automotive.com/fileadmin/pdf/e_anlagen/317/e317114391101.pdf

On page 24, it says to unplug pin 10, but there is not a cable to that "port". 

Instead, there is a green/yellow cable connected to the port beside it, picture attached. 

I thought it might be an error from westfalias side, so I connected the green/yellow wire instead. (I think this is my issue. )

I proceeded to follow the instruction and finished the installation, the only other deviation is that I connected the ignition power to the wiring kit from the radar fuse instead (Step 28 in westfalias instruction)

After installation, I started VCDS and activated the towbar via CAN gateway - Enable 69-Trailer. 

When I tried to connect to the trailer module, I got "Failed to connect" to the trailer module, VCDS could not find the trailer module. 

My question is, which cable should I connect to instead? Or do I have other faults? Westfalias instruction does not specify which colors the cable connected to port 10 has, so I am stumped as I do not have a wiring diagram for the car.

I have tried to connect the towbar to a trailer, the taillights do light up, but turn signals, brake light and other functions do not work. 

I am very grateful for any suggestions and inputs, thanks in advanced.

Best regards,

Fredric