Mounting solution for my double din

[EGEM_MAG_COM]

I have my radio installed in my truck (Mack granite,2011 tractor)....above that, there is a double din opening (currently has a blank cover that can easily snap out, it's flat, flush w the dash board)....I want to install, drill a hole in it to install a pivoting ball mount for my tablet.is there such a mounting kit/parts anyone know I can Buy to do so?

http://goo.gl/Gi1as

 

[EGEM_MAG_COM]

It's a ten inch tablet.....