God I would KILL to have a mounting problem like this....WHAT PROBLEM? Go to TAP Plastics and get a piece of Plexiglass (Black) and rough to 1/2" largerthatn the opening shape. You can sand it smooth and glue blocks on the back to effect the mounting to the inside of the opening, or better yet place 4 holes (one in each corner of the homade plate right next to the opening. and use nuts and washers from behind. You can get some nice hex heads to match the Empeg even.

I did this with my girlfriends Cherokee (stereo install, not Empeg) and it worked well.

Now can anyone find room for another DIN slot in my (*&!@^#$^ M3???