You could also try your smart/Mercedes dealer. They would need a copy of the registration or title showing that it is in the U.S. (and be willing to go through the process) to order them just like any other "grey…"
I threw a few pictures together to show the display. Starting on the top left is turning on the radio with it set to USB. Second is going to info on the menu bar. The next 4 are from music on the menu bar and backing down through…"
The 3 and 4 character codes are the I-pod's normal file structure. The controller software in the I-pod knows what file is what song in what play list. The radio is reading it as a standard mass storage…"