alt wont charge battery on 2001 Kia Rio

Hello, my alt went out, got a new one, tested it, it is good, new battery, replaced some fuses, the alt still will not charge the battery????????

Asked by for the 2001 Kia Rio
The alternator needs a few things to be able to charge the battery. It needs to have good connections to the positive and negative side of the battery, and it needs a voltage signal from the ignition switch.
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