ghettoblaster help

Not sure if this is the right subforum but I'm making a ghettoblaster and here's what i'm working with: 1 subwoofer Alpine Type-R SWR-1022D with 500W RMS(nominal output power) and 1500W max 2 speakers, both 60W RMS Case is all done, all i need is an amp and a battery, I have 1 battert that...