74 Duster Fusible Link

Hello and thank you for your reply, yes first thing I did was disconnect the battery. Every time I tried to fix this, the battery was connect to see if I fixed it and disconnected again. I'm not a pro at this either but from what i have been reading and some videos I have watched, this AMP meter is a big problem. I'm trying not have to re wire the whole car because from what I can see everything else looks great, nothing burnt.