[mcomet]

I have the same thing tho on mine it seems to be passenger side almost like it is from the glovebox or such... But yes I have searched as well apparently seems related to the window and how it is mounted? Definitely a loud crack and sounds like a rock or pebble hitting when it happens. It seems to happen once or twice after I start driving as the car warms up or such ...

It may be th heating, also read some people think it is based on twisting or torquing the frame... Not sure how common this really is but seems to be posted about ... No solutions I have heard of...