Here is a brand new system for a car or truck! They really are brand new, i only used them a handful of times and they were only on full power once or twice! I even still have the boxes that the subs came in. Two 12 inch Rockford Fosgate shallow-mount subwoofers in a custom box. I bought this system for a 2004 GMC Sierra 2500 and sold the truck right after. The box is made to fit behind the seat of a truck but it can also fit in the trunk of a car. i would like to get $400 for it but make me an offer! Send me a message or text 620-640-7zero3zero for more info. 

Subwoofers:

http://www.crutchfield.com/p_575R2SD212/Rockford-Fosgate-R2SD2-12.html