07 Accord-- What is this accessory?
 

This is a shot of the overhead panel right above the rear view mirror of my
07 Accord 6 cyl sedan. I can't figure out what that grill with all the holes
is right beneath the DOOR==OFF switch. I also can't figure out what the
little round hole just to the left of it is.

Any ideas?

http://good-times.webshots.com/photo...75303029tFOmQi