yo yeah i've got the same problem with my acc 99 sdn.....replacing the tweetz is a very good move.....that's if you want clarity!!.....the stock tweetz are not conpatible with the pioneers you've installed..and also get an amp. something not too high in wattage.....just enough to make aloud solid sound and crisp clarity...that's what you want.......alpine amps are one of the best I heard but heavy in the pockets....go for it dude reply bac eh!!!