pls. advice on how to set up audio system for a car. i want to have a descent sound. i'm looking at pioneer stereo system with pioneer or dai-ichi speakers (depends on the budget).

looking at pioneer's site... there are 3 way, 4 way speakers. currently, i'm thinking of having 4 speakers then later on amplifier and subs (if necessary).

do i need to put 2 x 3 way at front then 2 x 4 way at the back? or 4 way or 3 way for all the speakers? what should be the wattage?

re amplifier, what should i look for? wattage?

btw, are dai-ichi speakers good?