Need a navigation DVD for the Phaeton (GP1, Mod 08). Can I exclusively return to VW? The prices are quite self-confident. Is one as a Phaeton driver necessarily as a money burner or can one keep a healthy feeling between power and equivalent? My search here, via google and in the bay was unfortunately unsuccessful. In doubt I run to the VW man, but it is annoying, for the same money I buy 5 mobile Navis which are probably hardly worse…I prefer to go and save the money Since I want to test the retrofitted navigation system first it would be an older version. Would be nice if someone has a hint. Sepp