Wiring Diagram, GRA, Skoda Octavia SLX, Manufactured 17.2.98

Hello!

Does anyone have an electrical diagram for a Skoda Octavia SLX, built 17.2.98, engine 1U?

I have purchased a GRA and would like to install it, so far so good.

I also purchased the cable harness for the GRA.

Okay, now my questions:

1. Has my Skoda already pre-wired the cable harness for the GRA, so that I only have to install the remaining {COMPONENT}?
Do I need to install GRA levers?

2. If not, you need to connect all 4 cables to the control unit, which is located under the windshield wiper motor, as there are only 2 connected in the attached diagram.
Furthermore, the attached drawing is of the Passat 97 (I don't know if it's the same for the Octavia).


The cables are labeled as:

K.A.1
K.A.2
K.A.3
K.A.9

The cables should be plugged into the 10-way socket (T10k).

Can anyone tell me what function each cable is intended for?

Thank you in advance.

I hope you don't mind me bringing up the GRA topic again, but I
I was unable to find the answer that was suitable for me in the search function.