You build a box to use every inch of space available. Even run external ports if necessary. Obviously not running super massive subs. Do you have to move the seat up a little, yes but not all the way or anything. Not like you are sitting against the steering wheel. I'm not gonna sit here and argue about this. It's not hard to do and there is room. Like I've stated, I built a box for four eights, firing up, port to pass side. Those cars are TINY. Box was about two and a half cubes. Rangers are bigger than MR2s, fullsize Chevys are bigger than Rangers... No reason for me to keep repeating what I already posted.