So the lady's A6 was having the typical electrical problems, and it ended up being the CCM. A plug was corroded out and there is a tiny bit of corrosion on one of the module terminals, so I got a new plug and CCM. I've tried to teach myself wiring harness diagrams in a few days but have hit a wall and would love some input. I also know it needs to be coded in Vag-Com, I might finally buy that just to be done with it.

I've soldered things but wondered if someone could help me before I button it all up. You can see the plug wiring below, sorry its a bit crude. I've tried to use to this with the wiring PDF to trace everything (http://audi.kris-hansen.com/bentley/audi.c5.wd.25.pdf) but don't trust my amateur approach. There are three wire colors which are the problem, red/blue, blue/gray, green/black.

There are two separate red/blue wires but am not sure of which is which, would there be any good method aside from tracing the wire into the harness? And, since the blue/gray and green/black wires both go into the same terminal, does it even matter if they are switched? The red/blue wires are joined like that for testing, they'll get soldered and wrapped. Thanks for the help!