Just got this for my 2005 Chevy Equinox. Even with the stock speaker set there is an incredible and very noticeable change in the quality of audio, no matter what the source. I purchased this unit primarily for the bluetooth capability to stream Pandora from my Droid, and it works flawlessly. The phone and HU pair up every time I enter the car without a problem. All in all not a thing I do not like about it.