UKPassats

I've been looking at getting some Ipod sounds in my Passat, and was wondering what the Dension Car Link kit was like? I have a standard Gamma Radio & CD Changer at the moment, so I guess I would lose the CD changer in favour if the Ipod. Question is... how navigable is the Ipod via the headunit using the Dension thing?

I've seen another Ipod link cable on Ebay for less money than the Dension... but that's a completely unknown entity.

I don't want to use a FM Modulator, as they tend to sound bad!

Any help or advice appreciated