Ford Excursion :: Overhead Trip Gauge Has No Power

What powers the overhead trip/compass/MPG gauges? Mine won't light up, and I'm lost.

The story: This unit has been out since before I bought it. Initially, I didn't give it too much thought. I was more interested in replacing tie rods and the lock-out hubs. Off and on since the summer, I've been thinking about it. In the fall, I started messing with it. I tried locating a fuse, but they all "seem" fine, unless I'm looking at the wrong one. I gave up, decided it was a dead unit, and went hunting.

In my grand fortune, I bought a replacement front grille for my Ex, as mine was cracked. The seller and I had a long conversation about our Ex's, and it led to him giving me a perfectly functional display. He bought the complete overhead unit for parts, didn't need the computer. I paid nothing for it, the guy was awesome. Despite his awesomeness, he said his 7.3L had only 152k, which may lead to a powertrain robbery in the night (j/k).

Today, I went out, dropped the console, popped and swapped the displays, still nothing. Sad faced, I hit my head on the steering wheel and came in for more coffee. It's snowing, again, and I'm not back tracking the entire system if someone here knows the hot spots or common faults of this display.

If you know anything that may be of some use, pictures, fuse slots, relay info. I know this v10 is a gasser, but I'd really like to see how bad it is.