Yellow Bird, I looked at these a while back, and I really liked a ton of the features, but I agree that it doesn't look easy to move between cars. That's one of the reasons I've scratched it off my list. I'd love to have an all in one large volume MP3 player with GPS and that other functionality would be nice as well, but I don't think it's this unit due to me owning more than one car that I drive regularly.