Checked the bulkhead connections, all are snapped in tight. Checked both + and - connections on the coil, both appear to be good. Checked connections under the dash, all seem to be secure. I had the voltmeter + wire attached to one of the ignition wire going into the ballast resistor. Since there’s two wires, top and bottom of the BR I’m not sure I have it connected correctly. The voltmeter still fluctuates like the turn signal is on.