Some Vanagon owners use a BEHR Air Conditioning System to get cold air in the van. The Samba user, presslab, posted this picture of a vent that apparently came with his BEHR unit. It mounts right in the ash tray. You can see his A/C controls just below his stereo. Some users have to remove the stereo to put vents in its place. Click through to see an example.

This guy has vents where the stereo should be, so he mounted the stereo in front of the shifter. Not ideal, but I’ll bet he’s happy when he has cold air blowing out of the dash in July.