i see. i have a sony cd player in my car. i just hooked it up like 3 days ago. and i need some bass. im thinking of goin little first. my guy is sellin me his amp and his two 12s for 60. i dont know any of the specs yet. but i think i might just use one of the 12s cuz the box is to big for my hatchback. its like the whole hatch. so ima go get a one 12 box and use one of them and use the amp. so i just use the red and white wholes on my cd player to go to the amp, and get the ground, and the power and what not. then its amp to sub speaker wires. aite ima look into it some more. should the amp and the sub match watts? RCA are the red and white wires right?