Yes, I asked a guy from Netherlands regarding changing my old anolog phone to a Nokia and he suggested I changed the Bose radio to the newer MB D2P raido first to see how things go. Because the Nokia kit would work only with D2P optic connectors. And if it works, he could put the whole Nokia kit in my coupe as factory way. Great because I could use the same Nokia on my other car. Try mercedesmods.com and you could find a lot of info on this subject and many others.