Thanks for the help Waynep, ended up replacing the alternator itself and now its working like a charm!
I had a Valeo alternator from an 03 Jetta in my garage, so I slapped that in and made the connector work somehow. Its working perfect now. 14.5v almost instantly at startup. Weather is below 30F.
Between the two that I've owned, I have way over 250k miles in 'em and they are awesome vehicles. Maintenance has been very reasonable although we just had to put a new alternator in the one we have now.
Bought the new Valeo, removed the Bosch, and got the Valeo installed. All is well, and I have a rebuildable Bosch 120A on hand-- no core charge w the new Alt.
My mk3 golf is at the shop right now because I installed a replacement valeo alternator and it didnt seem like a perfect fit and shredded up the serpentine belt. I think the shop I got the replacement from gave me a bad fit.
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