Sometimes sounds like over the visor, sometimes over my head, left of the sunroof.

 

Have you opened the sunroof and checked around the edges?

 

Yup. Nothing there. It's definitely left of the sunroof. Anyone ever seen one of these beasts without the headliner? What I hear is something rolling on a hard surface. Is there a hard plastic shell that the headliner is built on?

 

Can you feel anything if you put your hand on the headliner when it happens? Never heard of this before.