Well I just washed my car the a couple days back, and after this i'm getting noise from the back to wheels when the car moves, like closing the door or getting out of the car. When I drive the car there is no difference in braking or anything, so I don't know what the problem is. When I grab the back rims and try to shake it the back and forth, I hear a little cracking kind of noise from inside the wheel, and this is for both wheels. I try the same thing on the front wheels and there is no noise. I've never heard it before, so should I take it to the dealer or have any of you guys have any incite on this?