Command Start Question

[89smurf]

Looking at doing a command start in my 92 W250 (thinking of winter already ). Looking at the wiring diagrams, I'm unsure of which wires to use as the ignition and start wires. There are 8 wires coming from the ignition switch. I've looked on the diagrams and have narrowed it down to about 6 (I can list these wires if anyone needs them). My question is, which wires are required to make the truck run, and which one energizes the starter solenoid? I wish I could understand these diagrams a bit better. Any help would be greatly appreciated. Thanks Guys!