HELP - Painless Wiring harness for Amp Meter?

[Gregsmx]

Can someone provide some input on how to correctly wire a new Painless wiring harness with a '75 dash that has an amp meter vs. a volt meter.

Currently, the Painless wiring diagrams call for the following:

#935 Pink/Black - source
Black - ground

These two wires provide an ignition switched continuous 12v hot with ground. It's blowing the 10amp dash fuse and warming up the printed circuit pretty good too.

This will provide volts which would work for a volt meter, but not an amp meter.

Can anyone help with the correct wiring for an amp meter?
Thank you, Greg.