Great to hear you solved the mystery. Your alternator doesn’t need a break in period.
I’ve used YouTube to help me rebuild or solve allot of issues but it’s frustrating to me, how many you have to watch before you find one that is helpful. Some posters don’t care if the content they post is correct or not.
Thanks Phil. Yes - I watched many alternator videos and so glad this particular one clicked with me to check the wiring of the DA plug. It also showed that you don't have to connect the excite wire and your alternator will still charge if you rev up the engine a little. You won't have an indicator light, but the alternator will still work. Not doing that right now, but hope that was good information too?