1982 chevy camaro

the previous owner of my car is an idiot... used an alternator from a 93 camaro cut all stock wiring.now i'm putting an origanal alternator back on
have no clue about the wiring.origanal stock alternator four places i can hook wires too, but only 2 available. one that go's to battry and the other one went to the plug on the alternator,all (four) wires were hooked to one with some type of transistor. help,anybody please
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