Hey everyone. Well, just installed a couple of 10s in the trunk of my 300E. It sounds pretty good inside, but when you step outside, all you hear is buzzes and rattlings. I have gone out and padded the cover plates for the spare tirewell, so those no longer make noise, but the rear bumper is still buzzing like none other. I think its the chrome trim that runs along the top of the bumper. Whats the easiest way to tighten this up? Do I need to take off the bumper? If so, how do I do that? Thanks a bunch!