bensinc

I have a pretty loud squeaking/creaking noise from my tonneau cover, but only when the top is up. It happens over the slightest bump at even very low speeds.

However, with the top down, it doesn't squeak at all.

I'm new to this car and am not sure what to look at here. I imagine when the top is down maybe the tonneau is tighter due to the top being under there? Or maybe the squeaking is from the weather seal against the top when it's up?

It's hard to find it exactly while driving around unfortunately.

Thanks!