iPod Compatible with E70?

[DieselX5]

We just picked our new diesel up on Monday. We have the ipod option from the factory. I didn't buy the BMW cable yet, but plugged in the one I use at home on my computer to sync and charge the ipod.

The car picks up the IPOD and will play songs, but I can't select playlists, genre, etc. They appear grayed out and don't do anything when I click on them.

Songs play from the Directory\ipod control\music\ff01\wd25

It will show the normal song title while playing but goes back and forth between that and wd25.

Do I need to order the BMW cable or is their a way for this to work with my current IPOD cable?

Thanks.