Power flickers

Start by reading this article, showing the pitfalls of problems with high current going through the ammeter circuit and the bulkhead connector

Catalog

You do not HAVE to do the mod exactly as they do. You can also fix the terminals or drill them out and run larger gauge wire "straight through" and you can use a bypass wire straight from the battery to the alternator. IF YOU do this put a large breaker/ fuse in that line as you are removing the protection of the master fuse link

IF YOU DO NOT have documents, you can download factory service manuals and aftermarket, 2 page diagrams (which are not as detailed, but can be easier to read than OEM) here from MyMopar:

Resource Library – MyMopar

Service Manuals – MyMopar

Aftermarket wiring diagrams. Again, the factory ones are more complete

Wiring – MyMopar