XC90 and others: digital broadcasting

I know: Is there still a long way to go, but I read in the newspaper today that there is already a binding agreement of the radio inventors (??) to distribute radio only digitally from 2010 onwards. All current vehicles – apart from accidents – will also be on the wheels in 2010. What do I do with my Dolby Surround Dingsbum? How do I explain to a potential buyer that he can only listen to music if he sings himself? Greet Frank – something – but not very – hasty!