Can you take an image of the unit and post it here? From Delco 21SI to Leece Neville Road Handler, to Niehoff, the connections differ and it is vital to determine which is which.
You are getting a loss of stator output signal. Charging has stopped. Important to determine is cause is alternator internals, wiring hookup, or a miswire with a silicon rectifier battery isolator. Without info suggestions are guesswork, a hundred possibilities.
Second issue, does your Safari have a finned-box with studs battery isolator