I recently started noticing a slight vibration noise coming from the front passenger side of the car one day. I kept leaning my head over to that area and touching the headliner, sun-visor, glove box, etc. The noise didn't stop until I grabbed the door handle and pulled it toward me (like closing it). I plan to to go over the door carefully when I have some time and make sure all the little screws, etc are nice and snug.
2012 FF Ti HB Platinum White Tricoat, Built 12/11, 401A + Parking Technology Package and MFT w/NAV at 3.5.1