I fixed the wiring but the alternator needs replacement

This video shows the job being done on a similar car but the process is the same:

https://youtu.be/d3dt5cQGhmM

Here is a guide to help you step by step with instructions in the diagrams below to show you how on your car:

https://www.2carpros.com/articles/how-to-replace-an-alternator

Check out the diagrams (below). Please let us know if you need anything else to get the problem fixed.