Years ago I adapted(made bracket) a GM small case 105 Amp alternator my starion 2.0 corolla swap. Worked great
think it was a single wire hookup, with the 'exiter' turn-on wire routed thru the dash warning light bulb

Never liked those power-hog Taurus fans, ridiculous amp draw
Can't remember which oem single fan (cheap junkyard) i used, but it only spiked ~17 amps, then settled to ~10 amps running
.....read on a small battery charger dial gauge
solid air flow n kept cool easily. Hayden ajustable fan thermostat/relay