It may be necessary to drill 32 mm (1¹/₄ in.) holes for routing the cables.

You must apply marine sealant to the hole after the cables are in place to ensure a waterproof seal.

If you must make the routing hole in a visible location, 32 mm (1¹/₄ in.) decorative cable grommets can be purchased from your local Garmin^® dealer, or you can go to buy.garmin.com (optional).

• If needed, you can trim the grommet to enable you to route multiple cables through the same hole.

• The optional grommet does NOT provide a waterproof seal. You must apply marine sealant to the grommet after the cables are in place to ensure a waterproof seal.

When installing the cables, you should observe these considerations.

• To ensure safety, appropriate tie-wraps, fasteners, and sealant should be used to secure the cable along the route and through any bulkheads or the deck.

• You should not run cables near moving objects and high-heat sources, or through doorways and bilges.

• To avoid interference with other equipment, you should not run network and power cables parallel to other cables, such as radio antenna lines or power cables. If this is not possible, the cables should be shielded with metal conduit or a form of EMI shielding.

• You should install the power cable as close to the battery source as possible.

  • If it is necessary to extend the power cable, you must use the appropriate wire gauge (Power Cable Extensions).

  • Incorrectly extended runs of cable may cause the radar to malfunction due to insufficient power transmission.