In my opinion one 'better way' is to start with a fuse panel that includes both a alternator feed and a battery feed. Simply wire the ammeter in series between the fusible link at the starter solenoid and the battery feed terminal on the fuse panel. Painless has such a fuse panel and that is what is used on my truck, including full function ammeter. No problems in many years and thousands of miles.
Mark
Agreed. As noted, I use a fusible link. The challenge was to install the ammeter with the AAW harness.
