i put in a clarion dfz675mc and polk rear speakers couple months ago. the hu doesn't have sub out, so today i put in a crossover and two amps. the crossover is a boss, one amp is a philips sound lab(100x2) the other is harman kardon(35x4). this is stuff i had laying around. the philips goes to the stock 8s. the hk goes to the polks and stock door 6x8s. still playing with the crossover for the best sound but it sounds alot better. i want to replace the door woofers and 6x8s but hopefully this will keep me for awhile.