When I first read this I was thinking Futaba. went back (after reading Kens reply) and noticed that it was for the JR radio. Ken is right, it is just a standard sub-mini or 1/8 inch stereo cable (male to male). You should be able to find them at Radio Shack, Walmart, or just steal if from your computer. Isn't Airtronics the same?

If that was for a futaba ,(old) I was thinking of the DIN connectors and soldering and saying it is not recommended for the price. I think that is why Futaba changed to the square connectors for the newer radios.