Low voltage at gauge, no charge?

@67Dart273 Thanks for the clarification on that. My plan is to upgrade the wiring as per the MAD document, the guy makes a lot of sense in it. I dont think my alternator output wire is even a 10g, maybe a 12, so Im going to run an entire new length of 10g from the alternator output direct to the battery with no splices at all, utilizing a 14g fusible link at the starter relay. As for the under dash stuff, Im going to join the red and black at the amp gauge, and utilize a new piece of 10g red, one piece direct to the starter relay as well, so the only wire the I will have to splice is the black through the firewall and connecting to the red before the relay, with a 16g fusible link. Depending on how that black is run under the dash and spliced into that welded splice, I just may replace it with a one piece running straight from the welded splice out to be joined with the red before the starter relay.
Unless I get lazy once I get the dash bezel out, then my plan may change.. :lol:
Thanks again for all your help, it was greatly appreciated, and most helpful!