Hey guys,
When I was looking at ways to put a/c vents,radio, and front speakers in my 39 I didnt want to cut up the dash or have a modern look to what I put in.
So for the side a/c vents I cut in half an old harrison heater face and mounted the vents inside, welded some new mounting surface and now they bolt up under the dash in each corner.
For the center a/c vents I got an old 3 door ford heater. With some major modifications, I mounted 2 vents in it as well as a stereo and some 4x6 speakers. With all the doors shut there is no hint of modern looking vents or stereo visible. I added pics of these to my album
http://s1233.photobucket.com/albums/ff392/thirtyniner39/Thirtyniner