Cadillac CTS-V - Popping/Rattle from sunroof

I hate the amount of rattles from this car but there is one that is pissing me off. Somewhere in the sunroof it sounds like there is a loose bolt or some kind of popping when the car is moving or flexing like when you go into a driveway or something or driving in general.

Anyone have anything close to this to point me in the right direction?

Thanks,

Dave

Behind the accordion close outs are screws that hold the glass in. Mine came loose and was popping. I have another one though that only happens when I open it. Not sure what it is.

Do I need to take it all apart to tighten those up?

I swapped the sunroof assembly in my old car when i swapped headliners. If u pull the headliner down, there are prob 6-8 bolts that hold the sunroof assembly in place. Id bet something prob vibrated loose. Im sure tightening them up would fix that noise.