I've never seen a car shake like that before. He's going to go deef pretty quick.

And the point for that is? I know when I was a teenager I listened to my music LOUD. I think most kids do--see I said most, not ALL. But I never listened to it THAT loud. Good grief!

I hate it when people have really loud music in their car. You can hear their car vibrating. Terrible.

Wattage doesn't mean much at all. What the dB rating?
(Sorry if it says so in the vid - can't watch at work.)

Well, not if they do it right.
Most idiots think that the idea of a cool car audio system is to have a subwoofer that drowns out all the other frequencies so you can't hear the song over the shaking of the door panels.
The concept behind a subwoofer is so that you can remove the bass signal to the main speakers, thus able to drive them harder to get better sound quality. If you just want loud, you need to upgrade the rest of your speakers as well.
Then you put expanding foam stuff in all your doors and anything else that might shake, so that you get good sound quality without any rattling.
But most people would rather spend the extra money that would cost on just buying an even bigger subwoofer so they can't here anything over 100hz.

What?!?! I can't hear what any of you just said, speak louder!!!!