My sub pumps hard as ******* to me because its right behind my seat but once you get in the passenger seat you cant feel it as much. What should I do so my buddies can feel it?

And another question the cab has 2 vents right inbetween the box of the truck and on the cab on the left and right side. It rattles a little but I can still hear it. Do you guys know what I'm talking about, how could I stop the rattling?

My box is too big to fit behind the middle seat. The box I have a made myself in like 20min with a jig saw so its chit. My truck isnt on the road till November and by then I'll make or buy a good box that might go behind the passenger seat

My trucks a 2001, regular cab, btw.

 

if you want them to feel it put it behind there seat, but most people dont care to feel the bass, stereos are meant to be heard