Amazon.com: Airplane Cockpit Intercom ATC Radio Recording Cable with Power Cable Adapter Audio Cable for GoPro HERO3 / HERO3+ / HERO4 NOT for Hero 5 and UP : Electronics
flitecordr cockpit audio recording cable – 10 feet (3 m)
Buy NFlightCam Prop Filter for GoPro Hero 5-7 - from Mendelssohns
Nflightcam Aviation Audio + Power Cable for GoPro Hero5, 6, 7, 8, 9, and 10 Black – Nflightcam.com
Nflightcam Aviation Audio + Power Cable for GoPro Hero5, 6, 7, 8, 9, and 10 Black – Nflightcam.com
Amazon.com: V2 18FT ATC Radio Audio Recording Cable with Dual Output for Gopro Phone Audio Recorder Extra Long 18ft / 5meter Airplane Cockpit Intercom with USB Power HERO3 / HERO3+ / HERO4,
Crystal Pilot GA Power Audio Cable w/ Gopro 5,6,7,8,9 Adapter – FlightFlix.net