MSG AFN/AHU Connector: 68 Pin Type

'Background: My new turn signal lever with GRA (Gear Range Adaption) has finally arrived. But before I disassemble the car completely, I wanted to gather all the necessary materials. In my Ibiza, there isn't any wiring installed yet that reaches the relay panel, so first things first, I need to run some cables.'

Okay, how do I best connect the three strands to the MSG?
In the thread Error message after installing a GRA, it reads:
I had to crimp the 4 wires of the GRA onto the connector of the control unit using ferrules, because the pins absolutely did not fit into the socket.

And later on:

On the first start, everything was fine initially. After approximately 2 minutes of engine running time, the ABS light illuminated, followed by the red 'warning' light, and a triple beep sounded...
'...however, the ABS fuse (which is located directly next to the tapped fuse) has blown – a strange coincidence...'

I actually want to largely avoid such 'side effects' because I need the car .

Now, how do I best solve this? The manual from Waltrop describes '3 connectors for connecting to the control unit,' but provides no further details.

Who can help? Thank you very much!

@gerbi

At VW, there are individual contacts available. You should be able to find something suitable for the STG connector there.

Look at this: http://www.passatplus.de/umbauteile/stecker/stecker.htm

I found something really interesting based on a part number I saw on the page you wrote.
http://theb3enthusiast.no-ip.com/vagtypeconnectors.pdf

Let's see if I can find anything in these 195 pages...

edit: No chance, the offer is simply overwhelming!
I'll stop by the mechanic tomorrow and see if he has any idea what's going on.

Today, I installed the last cables, and after adjusting the clutch switch and activating it, the cruise control is working perfectly smoothly . Thank you to all who helped!

'When I have the time, I will compile the photos taken with the digital camera and the order numbers for the necessary parts on a website.'