okay, in my spare time this morning my brother and i went to work dismantling the hatch, insulating every clip, wire, and cable, and test driving for sound. didnt fix a thing. so we went to work on the hatch lifters. messing around with them we found that when the hatch is partially closed, you can manually agitate the lifters and reproduce the rattle that we think you hear. seems like its the rattle that i hear, anyway. its the rod inside the arm that is rattling against the sleeve of the arm, on the inside. the more the hatch is closed, the louder the rattle gets. i think we may have found the issue. now, how do we fix that?