Thanks HRL , Jerry you put a big smile on my face with the mention of a western union splice. It brought back memories of proper methodology. I am also a HAM and make connections quite often.
Alvin and others can look it up to refresh how to do it correct.
The current to the back of a ammeter can get out of control with old frayed wiring and the use of higher amperage alternators used as a upgrade without a shunt also being used.
New stuff uses a volt meter.