EZ Wiring questions

#45 Tachometer, is that the same as the coil negative wire?
#47 fan fan, is this for electric fans?
#44 Alt Excitor, Is this used at all?
#32 Ignition switch start, Im assuming this goes to the starter relay
#52 Solenoid Power, This is a 10ga wire, I assume this is the main power for the whole system??

I didn't use the tach, fan, or alt excitor in mine, but I'm not using Mopar ignition either and I'm going to use a one wire alternator. But the ignition start switch does go to your starter relay and the end of your solenoid power also goes to your relay, but with the fusible link installed between the power wire and the relay. It shows that in one of the diagrams in the booklet that comes with the kit. But for anything else, call EZ. They are very helpful if you can get them on the phone. I called them a couple times myself on these very questions.