Weird question. When mounting/installing a satellite radio this weekend, I had to take apart the glovebox door skin. In between the 2 plastic panels is a "bar" that seems to be made of some kind of very hard material --maybe a ceramic. At first I thought it was just a piece of extruded fiberglass, but it's way harder than that. Doesn't seem to be aluminum or steel... What the hell is it? As a "support" for the door, it really doesn't seem all that functional. Anyone out there know? --Mark