WAM said:
My sunglasses in the overhead holder were causing a rattle that sounded like it was coming from the center dash area! Now, I keep my sunglasses in the cup holder and no more rattles!
Same thing happened to me! Every little bump would cause a rattle that sounded like it was in the glovebox to me, but my wife said it sounded like it was coming from my driver side and then I listened very closely and it seemed to be coming from the nav unit (thought I had the dreaded console rattle). I discovered that I had put my sunglasses in the opposite way and when I switched them around, no more rattle!
WAM, did you try repositioning them in the overhead holder (worked for me!)?