I've got 2 18" lvl4 w/ lvl5 coils pushing 2000 watts each in a suburban. My front windshield is loose and leaks when it rains. All the knobs on my rear heat have broken off along with the air vents for it. My passenger side window has fallen out and my rear view mirror has fallen of countless times. One window won't roll down, every panel inside is loose, I've broken every ceiling light one us still hanging by it's wires. All of my side windows and the ones in the rear door are loose I'm afraid there gonna come out. My seat belts stopped working, you can't pull them out but you can hear things rattling in them. The first box I had they snapped the 2x4 bracing inside and sheared off all the screws blowing both sides of the box out. So I've had quite a bit of damage but I don't care cause they sound good, play hard, and loud