I have an Alpine headunit but with a basic InCarTec adaptor for the display - it only shows volume up/down and track forwards/backwards and "ALPINE" at all other times - nothing else.
I think if you want radio station information, current track and time elapsed; you need Alpines own headunit -> display adapter which costs a total of £60 for both parts.
Worth it? I certainly dont think so. Youre going to be watching the road, not the display
. Besides, Alpine HUs tell you pretty much what you need to know from the headunit.