Audi DVD Sat Nav Disc Upgrade... CONFUSED...

[Birchy]

Hi all

I have a 2004 54 reg A6 Avant and a friend has offered me his DVD disc from his company car a 2008 08 reg A6 Avant (hes being made redundant).

We tried the disc this morning but it wouldnt work. The DVD Disc in my Audi Sat Nav Plus is part code: T1000-8832 Version 5 Western Europe.

The new DVD is part code: T1000-12660 Version 8 Europe.

Questions:
1. Why doesnt it work?
2. What do I need to do to make it work if possible?

Thank you

Birchy

[scone888]

i think nav plus is cd based and your mates is for the mmi