73 Dart Alternator doesn't show charge anymore.

After doing the 5A test with the fuse splice installed and having no issues I reinstalled the 20A and tested the brake lights and they're working again, still nothing from the key-buzzer, could've been the part that failed (what a shame), there's a little bit of ammeter draw from the brake lights when I push the pedal but I imagine it's just from them still being halogens until a find a replacement that fits and is LED.