I can happily say this is one of the best car stereos i have ever used. Not only does it look good, but the sound quality is fantastic. It is very fast at reading discs (Audio CD and MP3), in fact much faster than my old Clarion which i was told is better than Sony. There are pre-set sound modes for different music styles or you can define your own setting very easily. As for connectability, thew unit has 2 RCA outputs which you can run to amplifiers. A handy option is to run the "rear" output as standard or "subwoofer". Selecting the latter option gives you the ability to adjust the volume of the amplifier powering the sub independantly. If you are a real bass head then this is a must! the internal amplifier (4x50w max) is more than enough to run most uprated speakers and the quoted 100db+ signal-to-noise ratio means you get a super clear sound even at high volumes (speaker dependant). I cannot fault this unit and advise anyone in the market for a new car stereo to give it a go. I'm supremely inpressed and i'm sure you will be too.... especially at this price!!