Aviator..the sky is falling

[Brentcon01]

My factory installed roof-mounted DVD player is coming loose and has started an annoying rattle. Anyone know how and where to tighten it back up? I see no way to get at any screws or anything. How is it attached to the ceiling??
Thanks!

 

[freedom9ner]

I have a spare that's not installed... If I remember I'll take some pictures of the mounting points.