My alt is wired this way
S - connect this right to the "+" on the Alt. with a ring terminal
F - Not needed
L - Connect to 12V source with a 3-4 Watt bulb in the circuit (see web page on CS130 repair) I have a resister instead of the bulb
P - Not used
And the big Wire go's to my starter and back to the disconnected side of my cutoff switch.
Also on the stud the alt is 1 wire that go's to the starter, 1 wire that jump's the s terminal to the stud, and I have my cooling fans wired to it.

The alt is internally regulated GM CS130
I have no stock wiring in the car, The person I bought the car from wired it himself. The whole car is wired off the disconnect side of the cutoff switch.