76 dart sport fuseible links

My Dart is a 1976 and has the shunted ammeter. I'm trying to identify the shunt for the ammeter. I see two ballast resistors on the firewall in the photo, above. Is it one of those perhaps?
No t that easy.
It's in the harness. Specificaly in the battery positive feed.
In the diagram solid round circles represent crimped or welded junctions.
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The ballast resistors are in the run circuit.
The one with broiwn wires on the other side is 1/2 oum and connects to the coil.
The other other one should be 5 ohms and helps control powerfor the ECU.
Nothing to do with the ammeter.

There should be three fusible links that are joined together with the battery positive feed/charge wire.
One comes from the alternator output.
One goes to the key switch
The last is to feed all the circuits that do not go through the key switch (headlights, brake lights, dome light, etc)

The other end of the shunt in the factory diagram shows as welded junction. However I don't know exactly where its located in the wire. It might be a ring terminal on the starter relay. Would need to see in person or good photos.

As far as I know the shunt here is simply a wire with a known resistance. Whatever that resistance is, its too low for a normal multimeter to measure.