Dr.Murdock

I got an aftermarket system installed on my tl recently...one of the items was a 3,000watt alpine 12 inch type-x sub. My rear deck rattles so bad that it overpowers the sub at certain times and i feel like the back of my car is gonna blow up. The rattle comes from the upper brakelight...each time the sub hits, the plastic around the break light flaps liek a pancake....i guess these are the locations of those notorious rear deck rattle issue, but now they are much mroe intense but easy to see where its coming from because of the vibrating parts of the car. The enitre rear deck rattles too as if its loose, the whole thing jumps up and down.

Anyone know of a way to solve or minimize my issues? How can i stop thsoe parts from vibrating?