I have mine hidden away in the trunk for the last 5 months.
I use the 5 playlist to define 5 moods of music, which I can swith between, within each playlists I have 100s tunes all in a random mix.
I use it pretty much as 'personal' radio station.
I would suggest that trying to navigate to a particular song/tune using the steering wheel/radio control is near enough impossible, but can be achieved in a real 'music emergency'.
If you really wany to navigate around your music then I would suggest you need the Ipod mounting around the sterring wheel.....but please not when your driving around anywhere near me!
Hope this helps
Rosoce