Hey guys I have an '06 9-3 aero sc and recently its been giving me some bumpy trouble. Once I get above 65 mph the steering wheel and the car starts to shake. Someone proposed to me that it was a wheel weight that could have fallen off of one of the front wheels, causing an imbalance. Does anyone know if there are wheel weights on the stock aero 5 spokes? If so where are they located on the wheel? and also where would be a good place to purchase a replacement weight? Thanks.