Every time I back out of a parking space and turn the wheel, I am getting a very loud grinding noise from the front of the car. I only get the noise when turning the wheel in reverse, never going forward. I've tried tightening my lugs based on a suggestion from another post and it does not look like the wheels are rubbing on the wheel well. Suspension and wheels are all stock. It is definitely more of a grinding sound rather than a squealing/squeaking noise. Any thoughts on what it could be? I plan to take it to the dealer, but figured I would ask and try to save my self the time of having to leave the car at the dealer for a couple days.