Garmin Power/Data Cable for 7-Pin Chartplotters | The GPS Store
Amazon.com: Garmin Tread Powersport Offroad Navigator with Group Ride Radio with Garmin PowerSwitch Digital Switch Box and Wearable4U Power Pack Bundle : Electronics
Garmin Tread XL - Overland Edition
GPS Antenna BNC Male for Garmin GPS 120/120XL/125 Sounder with Cable | eBay