#1 decide if you are willing to give up your ammeter function. If so then the Madd bypass is good. If not (my pref) then do Nachos' bulkhead parallel bypass in addition to cleaning every terminal/connection including ground paths. I'm thinking you just had a bad terminal connection at the ammeter & if you correct that then you should be good (I would do the bypass) as the bulkhead is a problem area & relaying any add ons to the alt is a good plan. #1 keep the ammeter needle close to 12 0'clock & do not use the alt to charge up a depleted battery.