I just swapped out the speakers with speakers that fit like factory. Holes lined up and all. Still sounded like crap. I also wanted to hook up my 12 CD changer I have, so yesterday I swapped out the head unit for an Alpine CDA-9855. Sounds 9 times better. I think I need an amp to really make it sound as good as possible for this car, but I don't think I'm going to do it because that means rewiring the entire system. Not to mention no where to put the bigger amp. I think I can live with the sound system now. It's much better.