One is I turn off the option in the Energy Saver "Allow computer to sleep from Power button" - I.E., if that is turned on, the Carnetix P1900 sends the Mac Mini a signal at the power button causing it to sleep when I switch off the ignition. If that is off, the definition of off in this case is that I go up to the Apple Menu and manually Shut down the computer.
The other "definition" is when the Mac Mini goes to sleep as normal with the signal from the P1900 and I go to wake up the computer - the P1900 will sense that the Mini isn't supposed to be on (ignition is off) and it will HARD shut down the computer - all power is cut.
To answer some questions, however.
#2: From the battery, around 0.92 - 0.98amps
#3: From the battery, around 0.85 Amps
#4: "Definition 1" - 0.6 - 0.7Amps directly from the wire to the P1900 from the bus terminal.
#5: "Definition 1" - 0.8 - 0.85Amps directly form the wire to the P1900 from the bus terminal.
#6: Unable to access negative wire right now (buried behind another interior panel).
#7: 12.28V - LOW! The battery was around 11.8V when I first looked at it today. I was in and out of the car a lot yesterday working on the computer system/taking it out so the interior lights were going on and off a bit.
#8: 13.96V after the car was on a few minutes, rose up to around 14.01V.