works fine with my iphone 3g so I think you should be fine.
however, sometimes it says "Data could not be supported"... just take the cord out of the iphone and plug it back in and works again.
also, sometimes when I go to playlists it gives me names of songs instead of playlists just press back on the car controls and click playlist again and it should read perfectly.
so there are some imperfections yes, but it's not that bad
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