You are correct.
but let me summarize:
1. cut red wire from 3 wire plug from alternator.
2. extend the red wire STILL HANGING from the connector to the main CHARGING wire.
3. the red wire going into the harness is no longer used. TAPE IT UP!!
Heres a Pic of the final wiring. The PINK wire is your new extension.
AGAIN, i cant take credit for this, and yeah i really feel for all of us who have replaced the alternator and did not see any benefit.
