My Crossfire has about 4000 miles on it. Many times when I am driving it, I hear a pop in the driver side door after I close it -- delayed by about four seconds. I am not referring to the door locking. I can't tell if the noise is associated with the window or with the side air bags. I have had to have my window readjusted three times for wind noise, but I t think this is a separate issue. Has anyone else experienced a problem like this?

Many thanks and happy holidays.