I want to further clarify the TOTALLY CONFUSING instructions for ammeter seen on these two harness instructions used by 400case and 47bomber regarding the so called "Solenoid Power Red Wire".
To wit:
IMPORTANT
AMP METER INSTRUCTIONS
IF YOU ARE USING AN AMP METER YOU
WILL NEED TO ROUTE THE 10 GA
SOLENOID PRW-RED WIRE FROM
THE FUSE PANEL TO THE AMP METER AND
THEN FROM THE OTHER POST OF THE AMP
METER OUT TO YOU POSITIVE BATTERY
SOURCE. DO THIS BEFORE INSTALLING
What they are saying is CUT OFF the 10ga wire (which is shown on their NON Ammeter diagram as going from fuse panel directly to solenoid battery hot stud) and attach it to an ammeter post. Then take the rest of the wire that you have cut and attach one end to the other ammeter post and one end to the solenoid battery hot stud. Their "solenoid power" wire from the fuse panel feeds all the load. It feeds the hot side of several fuses. So you are putting the ammeter in series between the loads and the battery.
In summation, both sides of the ammeter are using the same 10ga red wire supplied in the harness. You are cutting it short, terminating it and reusing the cut off piece for the other side of the ammeter. This cut off wire piece is the one that goes thru a fusible link, or other suitable fuse, on it's way to the battery.
What is confusing for me is two guys with same basic truck and same basic harness. Trying to keep track of who's who

or is it whom's who. See, I'm going knutty. I enjoy helping them both. They are getting great advise from other members also.