[vince1]

From what I understand if you order a CS130 for an 89 Pontiac Safari it comes with a V pulley. An advantage of the CS series is that they charge so much better at low RPM. You would need the PL(I/F)S connector with it. Your brown wire would go to L for lamp and the S for sense could go where you want to sense the voltage, or if you want more simplicity, just put it to the output post.

if you want to go cheap like me, get them from the auto wreckers. I quite often find them brand new looking with a recent overhaul tag on them. Serpentine pulleys can be swapped out for V pulleys. There are lots of different mounting options so look for one of the smaller ones with the lugs 180 degrees apart and 6.6" across. I always keep a spare and if they need one offer them at cost to local club members.