Thanks for all the info, guys. I successfully installed my EVIC over the weekend. There were only a few catches. First, I discovered that I, too, have 4.5mm / 7/32 hex screws holding the A pillar in place. I ran all over the place (frantically--it was Sunday at 6 p.m.) until I found a deep 7/32 at Murray's. The next problem came when I tested the EVIC for the first time--it was dead! I rechecked my connections and discovered I had a lousy ground connection. Once I tightened that up, the EVIC lit up like a Christmas tree. The last problem was that the temp display was -40F (it was cold in my garage, but not that cold). I pulled the temp sensor apart and reseated it, and the ambient temp in my garage went from -40F to 59F. Much better!
One other thing--I found a good wire to use for the "hot" (the white/blue wire on the EVIC). I connected it to a wire on the HVAC controls (possibly the rear defroster) which is only hot when the ignition is on.
I took a bunch of pics as I worked on the project. They're pretty similar to what's already been posted, though, so I won't put them up here unless someone wants to see them.
Next up: Install a dome light over the back seat. I just purchased a Dodge Ram dome light on eBay for $10. I will take pics of that project, too, as I think many people are interested in that one.
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