Any of you try grabbing the front door striker "U" shaped mechanism and giving it a good pull? When I do that to mine it made a noise very close to what I've been hearing and I could reproduce it every time I pulled on it. I loosened the bolts on it and tightened them back up. The noise wasn't as bad but it's still doing it. I believe the noise might have something to do with the layered metal or clips behind that striker.