Alternator not charging. Can you splice into the wires to change alternator plug

What is your question?

Ive had new alternator checked its good. I had to change the plugin for alternator to fit new alternator. Used large butt connector on power cable to splice in fusible link that was blown. Alternator still not charging. Is alternator not getting enough power bc of the wires being spliced together with butt-connectors? Do I need a new alternator wiring harness or what can I do?

What makes this problem better or worse?

N/A

How long has your 2010 Chrysler 300 had this problem?

For last 3 months I haven't been able to drive