I am taking my 2007 in for a wheel alignment, and just remembered I need to ask them about this rattle. But knowing that the alignment people probably aren't the same as the rattle people, anyone had this problem and found a fix?
After a while being frustrated with a rattle in that area, I finally came to realize it was my sunglasses! I moved them around and problem solved. I assume yours is happeneing with the sunglasses holder empty?