stock subs, and upgrading
does anyone know what size subs are in the back, i hear that they are two 8's? i was also wondering if it would be easy or necessary to swap those subs out for better ones. if so which ones would work best, or would it be better to put a separate sub in my trunk. is the speaker box in these things set up to where you could do a swap, i'm speaking cubic foot wise. thanks.