Funny thing about sound quality. If you want better sound, invest in better speakers. Not wal-mart stuff either. If it was good quality, they wouldn't sell it there. Get (my personal fav. in my bmw and my pickup, soon to be in my RM) boston acoustics. Hmmm. Like butter. Sound deadening. Electrical noise filters. THEN worry about a deck. Your stereo is a system, just like your motor. One mod doesn't make that much difference, and the wrong mods together can be detrimental. Pick the whole system as a package, and go from there.