2001 Neon - Alternator charging problem

I am working on a 2001 Dodge Neon - new battery and replaced the alternator with a reman. Alternator will not charge - car starts but clearly the alternator is not charging. Putting out 11.80 volts and drops over time, eventually battery light comes on and car won't start as battery discharges.

Understand that the voltage regulator is part of the PCM - PCM threw a code PO601 and the dealer replaced the PCM under warranty. Unfortunately, alternator still won't charge, so I pulled it and took it back to Autozone so they could test it. I watched them hook it up and it pased both tests and they said it was fine (even though others have told me that you can't test this alternator off the car). Reinstalled and it still won't charge!

I'm confused - any suggestions?

Thanks in advance,

ryan