The rattle noise in the area of the rear deck lid is the deck lid itself. You can fix it by LOWERING the two rubber stops located on each side of the lid about 3/4 of the way down from the top of the lid. I only had to lower each one less than an 1/8 in. to solve the problem. You need an allen wrench or hex style driver bit to loosen the screw. Each stop acts as a cusion against the body. If it is not low enough, it allows the deck lid to touch the body metal-on-metal when you hit a bump just hard enough.