Bumping this.
I have gotten the rolling/rattling sound from somewhere. I think I hear it coming from the passenger door but when my girlfriend is sitting in the passenger seat, she says it sounds like it's coming from the driver door. So it must be in the middle of the dash. It sounds like a rock is rolling around, hits a plastic piece and just keeps bouncing around on turns, starts, and stops. It's driving me absolutely insane. I'm going to see if I can take everything out of my truck so it's just me, my keys, and the truck and see if I can narrow it down.