I recently picked up a new 2010 4.6 with Tech Package. Overall I am very happy, but there is a subtantial rattle somewhere in the steering column when the car hits a bump or expansion joint on a bridge. It almost seems like the airbag in the steering wheel may be loose. Anyone else have this problem? I intend to take it into the dealer as soon as I get a chance, but I thought I would see if anyone else has experienced this problem.