thanks guys
made a boo boo, in my head the amp was gonna mount on top of the battery box..alas in theory i was about 5" short, i only have about 9" wide but the amp is 13.5" wide, it would have to tilt and i just didnt like the look of it, and its **** near 34" long and the box is only 30", so it would have stuck out
so its going on the back of the box and gonna mess up my plans for the wire terminal, so thats 2 big holes i have to do something with, there is a such thing as too **** big