Re: 4-wire alternator wiring question...
I agree, you're almost there.
Your Suzuki diagram has 2 interesting things. I think it is showing the resistor, and I think "to charge indicator" means it is going through an indicator circuit on the dash, which is probably a light bulb that glows to indicate a problem. That wire is not going to a plain 12V from the ignition switch. On the alternator, the L terminal means "lamp". Adding a resistor is what will enable it to work on a vehicle that does not have the indicator light.
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