Also, has anyone ever DIYed car speakers? I'm looking to do just that, the only think stoping me is crossover design. I'm worried it would cost too much to have someone create a crossover schematic for me. I'd much rather DIY though, as I know and trust certain companies out there where as car audio has endless "cloak and mirror" companies that are full of tricks and bad products. Not to mention DIY is usually cheeper.
Meh, I know there are a bunch of crossover calculators on the net, but there's more to crossover creation than just calculus. I'd rather have someone with expereince design a schematic than a computer program. I will look around though.