[R3Sons]

One radio, check. I connected the power wire to 12.2v. I measured all of the voltage on the wires on the potentiometer. While I was measuring the power input wire, the voltage started to drop. It went from 12.2v to 9, then to 7 within 20 seconds. Now, when I turn it on, it drops immediately to somewhere between 5v and 7v. This is the wire from the power source to the potentiometer. This is also the same for the power wire for the light. When I turn the power knob to turn it on, it starts at 12, then drops to 5-7v within 5 seconds. This is very confusing. I understand when amps change based on draw, but I really don't understand why the voltage would drop like this.