I'm now using the MMI 3G after nearly 5 years of the RNS-E unit in my old A3. It seems to be OK navigation-wise, although I've turned off the voice prompts because we find the voice unbearable, especially after the smooth voice in the RNS-E.

One thing I'm very happy about is the fact that the whole of Europe is loaded now because it was a pain before having to buy and reload new discs for Eastern Europe when I got to Germany. I updated several times by buying discs on e-bay where they were a fraction of the Audi dealer price.

I've had a look in the (limited) handbook and can't see anything about loading the navigation DVDs. Is it actually stored on DVD or on the hard drive? If it's on the hard drive does that mean it will have to be updated by Audi (at a no doubt outrageous price) Has anybody updated their maps on this sytem? Obviously it won't be relevant for me for a while but I'm interested to know how it's done.

Thanks!