What is the best way to sound deaden fiberglass speaker pods? They are completely sealed with the tweeter and 6.5 both in it. They are alpine type x's. I just sound deadened the front doors(same speakers) and it made me realize that the rear pods now need deadened. Any help would be appriceated and I couldn't find anything in the sticky. Thanks
PS, would the pods help if I cut a hole in the back of it so it wasn't completely sealed?