I had my ipod adaptor installed at bmw on my 05 X5...it was around $500 with labor and all....Works great, but does not show any track info on the display. it only allows you to create 5 playlists that appear as 5 different CD's (like a cd changer)...you can change, tracks, random mode and all...You have to create these playlists in Itunes as BMW1, BMW2, ect....I just wish it would give track/artist info as you listened..but its worth the price in my opinion..its better then a cd changer.