Started rewiring a '41 slant dash A and realized I needed a little (or maybe a lot of) guidance. The current wiring is a mess so unfortunately that can't be used as a pattern. Brillman did provide some decent instructions but when I tried to transfer them to a diagram there were a few things that didn't line up for me. For reference I bought this harness (https://brillman.com/product/john-deere-serial-583999-complete-wire-harness-1-wire-alternator/) and this light switch per their suggestion (https://brillman.com/product/2-position-pushpull-switch-3-8-32-mounting-threads/).
The tractor has been converted to 12V negative ground with a one wire alternator. For that configuration how does this diagram look? I also have a spare wire (#40) from the kit that's just labeled as "light switch" but I don't know what it connects the light switch to, or if it's even needed for my setup. My other concerns are the hookups to the amp meter. I don't really like dealing with electricity so I'm hoping to get this right the first time instead of a trial-and-error kind of thing.
Wiring diagram: https://imgur.com/a/F3VEOv7
The tractor has been converted to 12V negative ground with a one wire alternator. For that configuration how does this diagram look? I also have a spare wire (#40) from the kit that's just labeled as "light switch" but I don't know what it connects the light switch to, or if it's even needed for my setup. My other concerns are the hookups to the amp meter. I don't really like dealing with electricity so I'm hoping to get this right the first time instead of a trial-and-error kind of thing.
Wiring diagram: https://imgur.com/a/F3VEOv7