I drive a 2000 Pontiac Grand Prix with a stock head unit. I just got 2 10 inch Kicker Solo-barics and I'm going to run them off of a 800 watt amp. My question is do I need a crossover to hook all of this up through my stock head unit?
you'll need a line out converter to hook the amp to your stock HU though. you will have to use the crossovers on the amp in your case. LPF, set it aroung 80Hz, play with it till you find a setting you like.