I have a mazda 626 that has a complete dual system (two twelve inch subs 420watt 2/1 channel amp and dual head unit). I just bought two 12" kickers that i would like to fit in with them but i dont have much room and too small a box wont even do anything. Any suggestions on what i should do? please email me at punkboi2006@hotmail.com if you have an idea.