I used a copied DVD. Now I have an original one. The Navi is working again, however still voice command. I do have an Navi Pro DVD that came out of an E60 though...
PS: I am assuming your radio only hits odd frequencies, rather than all frequencies, right?
Originally Posted by Paardshoofd
Modified my US-spec 2009 M3 in the Netherlands as well before exporting it to the UK (where I temporarily live for my job). Modified indicators, added rear fog light with switch and added (separate) alarm. Navigation was also reinstalled with European language pack (English UK, Dutch, German) and all works well; all my maps are still working and even the voice control system switches to Dutch and back.