I just had the regular cd changer headunit factory w/ bose sound system.

This is my 3rd kenwood nav system. Its hands down the best I've ever seen. What I really like the best about it is kenwood finally said screw it developing their own gps systems and bought the rights to use garmen navigation. All the features of the regular garmens and build into this. It locks on almost instantly and is very accurate. All the nav is stored in internal memory- No cd's to load for different regions, and No harddrive that I'm aware of.

You can do all the nav functions while moving and play videos also.

I got it for $1300 and there's a $100 rebate going on now on top of that.