Hello, I'm a 2 time Mazda customer ('84 626 LTS). I decided to buy our 2007 CX-9 Sport that we had been leasing, and would like to upgrade audio and a few other items. There is plenty of information on this forum, but I'm not sure I've heard consensus on the audio item. I have the base audio unit and speakers. I would like better sound quality, but don't need it to sound like Red Rocks on a perfect evening. My wife drives the car and would have been perfectly happy with the Bose system, I'm sure. When I leased the car I was more concerned with AWD and figured if she liked the car, we'd buy a GT when the lease was up. She LOVES the car-except the stereo and the lack of a back up camera. What would YOU do? Jeff