1970 Duster starter wire question.

Normally the largest, that is "main" battery hot cable either goes to the starter relay and then another wire down to the big stud on the starter. Both of these are the largest cables on the vehicle.

There is only one more wire to the starter "small" terminal, and this is normally about a no12 which comes to the starter from the starter relay. The key fires the starter relay, and the relay engages the starter solenoid. Your second photo shows a BUNCH of hacked up non original wire. And it's so dark I can't see crap