No holes in the top (cosmetic) face. The sticker had to be sacrificed on the back, tho. And, I had him mill some slots in the top rear edge... hopefully some convection will take place.
We're expecting plenty of hot nasty weather in the very near future... i'll report back on whether this worked to resolve my CD-X and 'No CD' issues.
No rest for the weary, and no love for the wicked.
I'm still getting occasional 'CD-X' and I have to power cycle the HU.
When this happens, the red and green LEDs are on solid.
VW Firmware 7.2, hacked HU, disk upgraded to 40GB in the same Fujitsu model line BTW.