NFlightCam GoPro Hero3, Hero3+, and Hero4 Audio Cable
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
GoPro Connect Cable to Intercom AUX port – Rugged Radios
[Review] Aviation Audio+Power Cable for GoPro by Nflightcam (include that audio, your viewers will thank you!) – Adventure Rig
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
Nflightcam Aviation Digital Audio Recording Cable – Nflightcam.com
Content Creator and Student Pilot GoPro Package – Nflightcam.com
GoPro HERO 5 to 10 Audio Recorder Headset Adapter for Panel Powered Headsets - MyPilotStore.com
Crystal Pilot - GA Power Audio Cable W/ GoPro 5+ Adapter – Pilots HQ LLC.
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,
NFlightCam Aviation Audio+Power Cable for GoPro Hero3, 3+, and 4 – Nflightcam.com
Pilot USA Dual GA Headset Recording Adapter For GoPro Hero 3 / 3+ / 4 PA-80S/Hero3 | Pilotshop.com
MG-88H) GoPro HERO5 - HERO12 Recorder Adapter For Helicopter Headsets
MG-88S) GoPro HERO5 - HERO12 Recorder Adapter For G.A. Headsets