370z Interior Hatch Rattle (All Plastic Trim Removed)

Originally Posted by Koz1614

Well after a lot of investigative work I have found the source of the rattle that I hear coming from the rear passenger side of the hatch when going over bumps. The problem is where the rear bumper meets the driver side quarter panel over the wheel well. If you press along that seam you get a terrible squeak/rattle that travels right through the hatch. Now the question is - Any suggestions how to fix this? Car is practically new with 2k miles on it, so I'm trying to keep from doing anything too invasive.