Support: Upgrading a zūmo® XT with the Group Ride Accessory

Learn how to properly upgrade your existing Garmin zūmo® XT installation to one that includes Group Ride Radio capabilities. Garmin strongly recommends having an experienced installer with the proper knowledge of electrical systems install the device. Incorrectly wiring the power cable can result in damage tot he vehicle or the battery and can cause bodily injury. For more help, visit http://support.garmin.com