I realise I've got the entry level model, but the stereo really doesn't sound good. I can't quite find a way to describe it but the 'esses' in both speech and music (including the car's own 'voice') sound odd, kind of like the speaker is covered with a box. I've tried fiddling with the sound settings and EQ, but can't seem to get it to sound 'natural'. Is anyone else a bit disappointed with the sound quality? Have they really cheaped out with the speakers or is it something else?