Once I bought a pair of old busted up Seeburg Laser Music home speakers. 50 watts apiece. The 12" drivers in those things would tear a new ahsswhole in alot of things. The box on them fell apart and we put them in my friend's Grand Am in huge ghetto 2.0 boxes off of radioshack x-overs. We just powered them off the old 6x9 wires. It ended up sounding pretty great for the price. 20 for the speaks, free warped plywood and 5.00 for the x-overs. if you want CHEAP that's the kind of thing you have to do.