Well, it's the other way around, we are using the B7 part in our B6 :wink:
Read this message for basics about how to retrofit the RNS-E:
Audi Navigation Plus :: RETROFIT BASICS, the search is also your friend to find part numbers and specific answers.
I suppose you have today a Symphony II with Bose and either XM or Sirius. This is what you can expect:
- You will need the RNS-E, part number 8E0 035 192E (for the US unit, $2900, Clair Parts) or 8E0 035 192C (for the EU unit, ~$1600 ebay.de).
- You will also need to get the Navigation DVD ($200-$400)
- You will also need an adapter set which runs about ~$200-250 including GPS antenna (various sources).
- Since you have a B7, you may not need a new sat receiver, check the part number, if it's a "D" or "E" unit you can keep it, otherwise you will need a new one ($450, Clair Parts). Sat radio does not work with the EU unit.
- In case you want a CD-changer, you will need the changer, harness and a new glovebox (~$700, Clair Parts)
- Finally, access to radio removal tools ($15, ebay.com) and a VAG-COM (
ross-tech.com) to configure the unit.
If you are lucky you can sell you sat enabled Symphony II or the sat receiver on ebay to get some $$$ back, but still, you are facing much more than the $1900 option price on a new B7.
If you are still reading I would recommend to browse through this forum and read the sticky messages at the top of each section. They include all the links you need. Once you have all the parts you can install everything in less than an hour. I wouldn't try to ask your dealer for assistance, unless you know him very well and he's willing to leave the official AoA path.
Have fun!