As Tigger says FM transmitter. I use this one .....Linky AudiaX .... seems to work very well in my Vito even though I get crap radio reception. Also works a treat at home.
there's a guy advertising in Mercedes Enthusiast (Jean Baptiste Navigation or something -- have bought an Audio 10 CD off him for a mate in the past) who reckons he can connect an iPOD to the CDC (CD Changer) port of the Audio 10. I held back because I want to retain use of the CD Changer.
OK OK, as you can see i am a techno expert. That's why i wen't all the way to Holland to have the Comand fitted and all the way to Kent to see another Steve to have the Auto Dimming Mirrors wired in.