I’ve got my intercom and my radio is due to arrive on Wednesday. Which means I needed shielded audio cable. I’ve been kind of looking off and on for weeks every time I go in an electronics shop, but no luck. So yesterday, I headed for Fry’s, which is about an hour south. About half-way there, I realized I was just about to pass Vetco. An lo and behold, Vetco had exactly what the doctor ordered. Two conductor stranded shielded audio cable for $0.45/ft. I got a bit extra, as I plan to wire the plane for ham radio, as well. Might as well, since the intercom supports multiple radios and I only have one comm radio.