I have 1 10" orion h2 dual 2 ohm subwoofer now and was wondering if 2 sundown sa 8" would be louder. I don't have much space I have a 1995 Chevy s10 singlecab truck and I only have 11" from my seat to the wall 13" high and 44" wide to work with and I don't know what to do. Would I have enough...