Unfortunately, I've seen several reports of different models not working. The .mp3 format is supported, however, other audio codecs are not supported at this time. Does your iPhone have .mp3 files you can test?
bought this unit recently and tried to use the ipod cradle.
It works brill with my brothers 4th gen ipod and 5th gen ipod, but will not work with my iphone 3gs (16gb).
The cradle charges it, and even recognises it on screen, but when you try to access the music it just throws up those annoying moving balls in the corner of the screen and hangs there.
Any ideas anyone? Is this a common problem or just a fault on my unit?
Any advice would be hugely appreciated as this is very annoying!!