top right (US passenger) side always makes a rock-hitting-windshield sound. Normal?

[cruisingdownthestreet]

I've had the car for 3 years and the sound from top right (US passenger) side with top up always makes a rock-hitting-windshield sound or a loud click that seems to more frequent as time goes on.

I'll sit in the car engine off, in a 2-car parking garage *rock hits windshield sound*

Car in idle at red light *rock hits windshield sound*

Car barreling through the freeway *rock hits windshield sound*

I have no idea if I should be worried. A vision inspection says everything looks fine. I even suspected it could be a tweeter speaker doing it.

[Mayhem]

Sometimes, the “rock hitting the windshield”sound, is just a rock hitting the windshield.

[airmarc]

Perhaps the latching mechanism is misaligned. Mine was doing that for awhile. Same side too. I decided to lubricate the latch with silicone spray. That fixed it for me.

[bigendbob]

It's the window trim expanding, spray some lub around all the joints.
It sounds like small pieces of grit hitting windshield, but isn't.