Quote:
Originally Posted by Hemiman392
Tom I have a 41ford business coupe and would like to put an ac unit in. I was told by speedway to install a runts device on all electric type gauges except amp meter. Will the wires that connect to the gauges become the hot wire and sensor wire ,since the original + ground supplied the juice ? Do I need to change out the wiring on the entire car ,or just add harness for the ac and other devices that will be 12v once it is converted?
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All you need for the gauges is the Runtz Voltage reducer. Reverse the wire that runs through your ammeter. You'll wire up the a/c unit independently from the factory wiring harness.