Flush Mounting the Device
Be careful when cutting the hole to flush mount the device. There is only a small amount of clearance between the case and the mounting holes, and cutting the hole too large could compromise the stability of the device after it is mounted.
If you are mounting the bracket on fiberglass with screws, it is recommended to use a countersink bit to drill a clearance counterbore through only the top gel-coat layer. This will help to avoid any cracking in the gel-coat layer when the screws are tightened.
Stainless-steel screws may bind when screwed into fiberglass and overtightened. Garmin® recommends applying an anti-seize lubricant to the screws before installing them.
The included template and hardware can be used to mount the device in your dashboard.