I guess you call it the door pillar. I have some rippling in the drivers door, right above the window on the part where it starts to slope down and heads toward the rear view mirror.

I am positive it was never hit by anything. I have a 2 way alarm and that sure as hell would have set off the alarm.

A friend said it might be chassis flex. He had it in his mustang.

Anyone know what this is or what causes it? I have stock suspension on the car.

 

I messed up. I just looked at it again. Its not in the door, its the panel above the door. between the roof and door. The problem area is about even with the top of the windshield.