In-line Fuse Cable
Garmin® strongly recommends having an experienced installer with the proper knowledge of electrical systems install the in-line fuse cable. Incorrectly wiring the power cable or the in-line fuse cable can result in damage to the vehicle or the battery and can cause bodily injury.
In many cases, you must install the included in-line fuse cable on the device power cable to protect the device from excessive electrical current.
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You must install the included in-line fuse cable if you are connecting the power cable directly to the vehicle battery.
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If you are connecting the power cable to an accessory power source or bus bar that already has a suitable fuse or a protective circuit, installing the included in-line fuse is not necessary.
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When installing the in-line fuse cable, you should connect it to the red system power wire using the included splice connector.