Wiper stalk wiring diagram or pinout.
 

Hi,
I'm doing a DIS retrofit on my C5 and I can't find a good diagram of what wires to connect to where.
For reference I'm gonna supply a pic of the connector in question, it's the one marked with a purple arrow.
https://cimg0.ibsrv.net/gimg/www.aud...9bf90c575f.jpg

My old stalk had only 2 out of 6 pins in the connector, the new stalk has all 6 of them, so I soldered some wires on there and I know 3 of them are supposed to connect to pin 17,18 and 19 in the gray connector at the back of my cluster but this is where it gets tricky.

When i measure the pins none give any response when pushing the stalk buttons, and why are there 4 new wires when the stalk only has 3 additional functions?
Do I ground one of them? Do i connect positive to one of them, in that case which?

Anyone have any experience doing a DIS retrofit? Is there a good diagram or pin out for the wiper stalk somewhere?

Thanks in advance!