Alternators

I'm guessing that you are running either a self exciting (modified regulator) or "full fielded" where the exciting wire is connected directly to the battery terminal of the alternator. The web is full of descriptive drawbacks to doing this with CS alternators. The Jeep guys have mastered this conversion. Pirate4x4.com has a really in depth read on this. I bought my resistor kit from GM but Painless, USautowire and others make them. So, what I've done after learning the hard way....dedicated battery charge cable (as you have), ignition source with resistor to the sensing lead on the connector pigtail (brown?) and the heavy red connector lead to the battery terminal. There's no need to waste the extra money on "hot rod" alternators when they all do the same thing and the factory units are more than capable, just add the wire and resistor. BTW the resistor was used in place of the battery/charge light and is wired directly to the regulator allowing actual system demand to be determined. It's also most commonly available as a 10/12 to 130 conversion connector, just cut off the 10/12 end and wire the yellow ti sense and the red to battery.