I ran a new 1 wire Powermaster 100 amp alternator and it's just 1 cable back to the battery.
I went to Advanced Auto Parts & had them cut me a couple of feet of battery cable and ran it that way.
I'm running dual electric fans with other electrical upgrades so I needed the juice.
The alt "knows" to start to charge by exceeding a certain RPM ( I believe 750 - 1,000 ) and therefore needs no external regulator.