i have blaupunkt 6x9's in the back of my car, and when i play the slightest bit of bass, the panels above the speakers rattle like mad. i know that the speaker sticks out pretty far, but what do i do to make it stop making this noise. im sure you guys have come across this before. any help would be great. thanks!

kubus

 

Sound deadening material. Dynamat, fatmat, edead, second skin, peel & seal, or whatever else floats your boat.