Cell phone mounts
...all you do is take out the stereo and pull the top dash loose, it slips in with a clip that holds the front on tight, then you slide it into place so the area above the stereo grips the front. No drilling required. I later tightened up the front clip, now it sits tight and flush to the dash. doesn't really interfere with dash covers either.
If you have an aftermarket stereo, you can run your wiring through the 'pocket' and behind the dash for a clean install. I later 'flipped' the stereo mount kit to get the pocket on the top:
You can get 'double' plates to mount more than one device on it...I have it holding my cell phone, my Garmin GPS, and the head unit to my VHF/UHF:









