1966 cuda cluster parts

Try the radio without it first and see if you get a lot of ignition radio frequency(RF) noise
coming thru. It would depend mostly on the ignition system in your car and how much RF it throws out. Resistor plugs and spiral wires cut RF way down. My cars
don't have a condensor and have no interference . Original radios also are more
prone to RF, newer types of audio systems have built in RF filters.