Just wondering i have two 6.5" in my car i have a tracker so there in right behind the seats in the side walls, i took the stock ones out and put in sum new ones i got and they flutter really bad. theres not enough room to put in a small box pretty much just enough clearance for the magnet. whats my best bet get sum deadening material and try to pack it in with sum. theres these plastic cases that go onto the back of the speakers that u can buy, but my friend said there crap n not to get them. any suggestions?