The car would be helpful and the speaker sizes, but i recommend 2 power acoustic mofos or tubars in a ported box. kenwood head unit. alpine or Boston acoustic speakers. Planet audio, alpine, US amps, Kicker or hifonics for amp brands. A Clarion EQS746 eq. remember get a quality box and wiring. I would also recommend http://www.sonicelectronix.com/ for getting all this stuff because it will be the cheapest there.