Help with locating a part

After looking at the part schematics on various sites, I'm having difficulty finding a small cover on the underside of the passenger side mirror that got ripped off who-knows-where (see pic courtesy of google images below). It appears to be a cover for the turn signal indicator and heating element.
Can any of you wizards find a part number for that little cover? Thanks in advance!

 

Hopefully they will break it down into smaller parts like that, seems like they usually make you buy entire assemblies

 

Solid point, and this is what I'm afraid of. If it comes down to that, I'm throwing some black duct tape over it and calling it a day.

 

Junk yard?

 

Possible drive through car wash fatality.

 

Nope, definitely a bush or tree branch. Or chupacabra.