I'm really happy with the speakers. It should sound good with the factory head unit, but change the factory amp.I installed the speakers first and within a week, burned out the factory amp..The amp I have now is alittle to much, but at the time I planned on adding subs, with these speakers,I really don't need any..Ordered speakers and amp from Crutchfield, don't remember where I got the headunit and diskplayer from, bought it several years ago as a package deal,REX, CurcuitCity, some place like that..