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2/23/19: I disconnected the gauge cluster, headlight switch and the speaker trim from the dash to gain access to the wiring. The main 12v splice was a soldered joint made the original fabric wire. I looked over the wiring diagram and the configuration under the dash and determined how to eliminate the splice by utilizing the extra terminals on the headlight switch.

I first:
* Connected the alternator to the 12v feed on the Head light switch using 10 gauge wire.
* I then made a jumper from 10 gauge wire connecting the the 12v feed to the negative side of the amp gauge.
* I then connected the positive side of the amp gauge to the starter with another 10 gauge wire to complete the circuit.
* To supply the current to the ignition switch I made a 14 gauge wire connecting the negative side of the amp gauge to the ignition switch.

These changes eliminated the rest of the old fabric insulated wire except the gauge lights on the dash.