How to get two riders sounds on one camera through cardo

The stories of a Man and his machine. What transpires is just for fun and about having a good time.

Tri Glide 2022 Gauntlet Gray Metallic/Viv Black
Tour Pack moved back 3" using the Kuryakyn Tour Pack Relocator
Seat Gap Filler by Kuryakyn
Heated Seat Mustang
Backrest Mustang
Big Ass Drink Holder's Passenger and Driver CIRO3D
Phone Holder Rokform Vibration damper as well
iPhone has the Rokform cover and is magnetic
Tour-Pak Lid Fitted Linning with Organizer Black
Air Wing Tour Pak Gloss Black Luggage Rack
12Vol Tour Pak Power port
Frame Mounted Adjustable Highway Peg Mount with Extended Arm Black CIRO3D
Twin Rail Footrests CIRO3D Rider & Passenger
Passenger Adjustable Comfort Peg Mounts Black CIRO3D
Klock Werks 10.5 Tinted Shield
Heated Grips Kahuna Harley Davidson
The camera's mostly GoPro, but Nikon comes along often.