Have had the 2012 Volt since Feb and am totally not impressed with the stereo. My other car is a 2003 Monte Carlo with the stereo up grade and I guess I am spoiled but this unit is poor quality. The high tones are way to "bright" and even with the high turned off and the mid set low it is impossible to get the complete sound of tunes to come through. Has anyone taken their Volt in to a stereo shop for an upgrade? Since so much is integrated with the radio unit can an upgrade even be done? Can speakers alone be changed to give a better sound? The other issue is road noise, but I will do another post on that.