and if so, can I use a 2-inch port and how deep? (have to mould the 3/8 thick mdf box it will be in to the back upper deck behind my the back seats of my volvo. Needs to be a several sided shape with several angles.
You can port any speaker. It may or may not sound good. You can either look up the speakers parameters, measure them with a cheap tool from parts express, or you can just build something pretty and see how it sounds. Nothing to lose but some mdf.