I'm putting a 15" sub facing the trunk lid here pretty soon. Do you have to take off the metal bracket/frame attached to the inside of the trunk in order to deaden it, or just do it over that?

 

you could deaden it any way you wish. your only objective is stop movment and stop resonence in the metal.

 

I laid strips over everything. I heard its better to do decent sized squares instead of long strips.. Either way your doing yourself a favor! Dont be affraid to lay on a second layer. My entire car is double wraped doors are tripple wraped you wont be dissappoited

 

Keep ponding it with a 25 lb sledge hammer till it's good and dead.......LOL Jk I second using the multiple layers....

 

Thanks a lot guys. Does this affect how loud your system sounds outside of the vehicle? I'll have a 15 pushing 2K watts.