You know it! Unfortunately, due to actual life events I was DENIED the pleasure of getting the install up and running.
I did, however, manage to sneak a little bit of time in and have now run the power from the battery on an 8 AWG wire to inside the dash where I've fused it and connected it to the power supply of the P1900.
I still need to put connectors on the secondary output so that my screen is finally powered by regulated power, but that can wait as long as I remember to insulate the connectors before starting it up.
I was ready to fire this baby up but hadn't had time to do two very important things. First, CHECK EVERY FREAKING WIRE TO MAKE SURE I DON'T SHORT OUT THE COMPUTER BY ACCIDENT. Most often in the past, the last 10 yards is where I lose the game. I get excited and hurry the last couple of steps and fry something due to stupidity.
Not this time. It's already been a complex install and if it fails (which it very well could), I want it to be for a reason other than stupidity.
Tomorrow after work I will check the wiring to ensure that it is properly grounded, the switched power is working right, and the +12v from the battery works. If there are no problems and there is enough time, I'll dig the VGA connector out of the center console, connect it to the screen, dock the Mini and try to fire up the system for the first time.
Did I mention it's hot as a ****** out there? I got no garage.