yea I kno but I wasn't gonna till him that, anyways this is what I got in the yukon 4 15" mtx thunder 5500's powered by a mtx 8100d ampheres a video right after the install, the rattling noise was my back door panels I was in the process of dynamatting them
http://s122.photobucket.com/albums/o254/J-...¤t=DSCN0438.flv