A quick and simple way to cover up an external PRO58 Module on an EV100. Stick the VRX to the goggles with double-sided tape. 
There are two options available, choose by your liking. The Cover will move a little if it is not glued to the goggle, you can use a small bit of hot glue to glue the cover in place and still be able to remove the glue. I heated mine in the front so i was able to press the front a little to the front of the goggles to counteract the negative slope of the goggle.