Instrument Cluster Wiring Harness Question???

[DrtyJack75]

I'm wiring in my Autometer Gauges and I got the Color Wiring Diagram from this site but I have a question...

What are these wires for??

-TERMINAL BY BATTERY (black wire)
-FUEL GAUGE as opposed to the FUEL GAUSE FEED
-HEATER LAMP



Can I tap my Volts gauge into the ALTERNATOR wire (I dont have the paper in front of me but I think thats what it says on the diagram) or is there something difference because of AMPS vs. VOLTS???

Thanks!!

Im making progress....hopefully next time (or one of the next times) I post something up on here Ill be posting pictures and maybe video of my baby running!