Ok awesome. I will try this when I get home! Your rattle sounds just like mine, hoping that is what it is!I finally dealt with my rattling issue. I removed the rear right hand side plastic pillar cover. Right side meaning passenger side not driverside. It goes from the trunk plastic to the roof liner, not very large. Turns out there are three clips that hold it on and one in the center of the molding was not connected from the factory. It is under a great deal of twisting stress, the mounting point seems to be slightly off and makes it difficult to engage. Once clipped in the rattling vanished. It is VERY easy to remove the pillar cover, just pry with your fingers around the edges until it pops off. Start at the top and move around and downward until the top and middle area are released and you will see the middle clip is the likely culprit. After you are done it simply pops back together and the trunk seal lip just fits back over. Do not use tools they are unnecessary. This process took about ten minutes.