Hi there, so I'm trying to make an old 50's radio tuner needle to pan sporadically but looped to run continuously. I included a picture of the radio. The radio is gonna be part of my costume, running off a car battery for leds, audio and the motor for the needle. My question is where can I get a cheap controller and servo and how can I program it to achieve this effect. I have ZERO experience when it comes to controllers so I am looking for something easy to program and setup also would be great if someone could step me thorough this if possible.

Thank You!