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from the peanut gallery, there are two wires which cause the alternator to charge, just like every other modern car.
the great big wire which goes to the battery and carries the juice, and a "trigger" wire, yellow/black which excites the field and kicks it off.
The rest are signal wires from the alternator back to the ECU which the ECU uses to keep track of how hard the alternator is working. For instance, at idle, if the driver turns the heater fan on high and rear defroster, there is more load on the alternator, so the ECU needs to QUICKLY give a touch more air to the idle so the engine doesn't slow down or die.
for your purposes, the signal wires are not really needed.
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