G3X amp install question

Trying to get an amp meter reading on the G3X (non touch). I need to locate either the .0005 Ohm resistor or the Hall Effect transducer mentioned on page 30-4 of revision AF in the Garmin G3X install manual. Any sources for either?

SteinAir is the place to go.

You are looking for an Ammeter Shunt.

Hall Effect

I hate shunts:

https://amploc.com/products/key100-open-loop-hall-effect-sensor?taxon_id=7