Technical Alternator wiring 62 Falcon

Have installed a Ford one-wire alternator in my 62 Falcon, originally a generator.
There are three wires in the original harness, a heavy yellow wire and two smaller wires for the indicator lamp, that originally attached to the generator.
Where should the feed wire be attached to the voltage regulator, the “bat” terminal. Is there any way to have the indicator lamp functional?
Thanks
ken