Ammeter wires

Hello everyone, I'm finally getting around to installing new gueages and cluster from autmeter and classic dash. Got pretty much the most of it wired up on both sides, guages and orginal harness side. I've read the instructions and realized it did not mention anything about what to do with my ammeter wires. From my understanding if those wires aren't hooked up it will not power the car? Could be wrong I am by no means an expert and very new to this mopar stuff. I understand how to wire the voltage guage but was wondering if anyone can help me out and suggest what I may need to do with my existing wires. It's a 1969 valiant I appreciate any help fellas .

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