RUGGED RADIOS Adapter for Scanner to 5-pin Car Harness, Headset, or In – UTVRaceShop.Com
Amazon.com: Rugged Carbon Fiber Behind The Head Headset and Adaptor Cable for Intercoms – Features 5-Pin to Off Road Coil Cord and Volume Control Knob 3.5mm Input Jack : Electronics
Use regular headphones & mic with your intercom beltpack
Sena +Mesh Intercom Adapter - Cycle Gear
Eartec Max 4G Double Headset with 5-Pin XLR Male MXD5XLR/M B&H