SharpSPL

Recently got a new vehicle, 1999 Mercury Cougar hatchback... while I rather it was a 1969 Mercury Cougar... It will have to do. Im looking at making a subwoofer box that will fit in the hatch of the coug. I listen to everything from county to rap, that may freak some people out trying to help, but I honestly like the lows some days and the beat from the country the next, Any help would be appreciated. I have about 36" width to work with, 14-15 height and 30 long (if needed) Would prefer subs on the top and port on the back? if you know what i mean.