Audi phatbox wiring

[A4 CAB]

Hi  I have just purchased a phatbox from eBay and separate Audi lead, I have searched the forums over the last few days and found a few wiring diagrams, but for some reason they don't seem to match my lead.
The lead has nine wires including the earth but has 2 red and a green that is not mentioned on the wiring diagrams. Does anybody know if there something I'm missing here or do you think I have the wrong lead?

The lead is the 13pin round type and I have a concert 2 stereo.

Thanks for any help

Frank

[jbdbsb123]

Hello.
Try this  http://www.phathack.com/index.cgi?page=pinouts