I've been experimenting with subwoofer placement inside my 03 WRX. the dang trunk is so airtight, and has so much metal/support structure that hardly any bass reaches the cabin ... unless you fold down the middle armrest in the backseat. any ideas on getting better sound with a sub in the trunk? I've thought about putting 4 inch ports in my rear deck, but not sure if that would help, and I'm not ready to cut it up until I have some idea of the result. right now I'm using two bass tubes w 8" JL audio subs on the floor behind the front seats, and so far this has sounded best. not so good as far as looks tho. anyone have any ideas here?