I have a '02 GS300 w/premium sound system, which I take advantage of. The bass is exceptional for being stock, and I turn the bass setting up all the way to 7, with the mid all the way down to -7 to make the bass sound louder. Once I did this a problem developed, I hear a rattling when music plays, but I can't figure out what it is. It sounds like it's coming from the trunk, but I have checked the trunk thoroughly and can't find anything. After getting a closer look, it sounds like it's coming from under the "barrier-thing and about 6 inches to the right (I don't know what its called) thats by the rear window behind the back seats. Has anyone had this problem or know any possibilities of what's wrong?

 

6pack of Krusovice Light says its a blown sub. Barrier-thing might be the speaker cover - which does NOT come off by itself , rear deck cover is one piece.

 

I guess what I was saying was that the sound was coming from below the rear deck cover, it didn't sound like it was coming from the speaker cover, and the sub still produces a significant amount of bass so could it still be blown?

 

update...so I looked at it with some of my friends, and they said it was the 3rd brake light plastic covering hitting the rear window with the bass....anyone have any thoughts on if that sounds likely or any ideas on how to fix it?

 

remove it.

 

got this figured out too, it was the 3rd brake light housing, it was slid over to the left, and rattling as well as the car seat anchors. Mods close if you want.