Step One - Determine Where to Mount
Begin the installation by determining where to mount the control head. Consider the following to determine best location:
• The cables for power, transducer and temp/speed accessories (if applicable) should be installed first and must reach the mounting location. Extension cables are available.
• There are two ways to route the cables to the unit: through a hole in the mounting surface underneath the mounting bracket or from a hole outside the mounting bracket. Routing the cables down under the mount provides maximum weather protection; however this is not always feasible if the area under the fish finder is inaccessible. In this case, route the cables through a hole at another location and cover with a hole cover.
• The mounting surface should be adequately supported to protect the fish finder from excessive wave shock and vibration, and provide visibility while in operation.
• The mounting area should allow sufficient room for the unit to pivot and swivel freely, and for easy removal and installation.

Step Two - Connect the Power Cable to the Boat
A power cable is included to supply power to the fish finder. You may shorten or lengthen the cable usually with a 18 gauge multi-stranded copper wire.
CAUTION: Some boats have 24 or 36 volt electric systems. Be sure your unit is connected to a 12 VDC power supply.
The Power can be connected to the boat's electrical system at two places: a fuse panel, usually located near the console, or directly to the battery.
If a fuse terminal is available, use crimp-on type electrical connectors that match the terminal on the fuse panel. Attach the black wire to ground, and the red wire to 12 VDC power. Be sure to use a proper amp fuse in the connection. If you must wire the control head directly to a battery, be sure to install an inline fuse holder and one amp fuse for the protection of the unit. In order to minimize the potential for interference with other marine electronics a separate power source (such as a second battery) may be necessary.

Step Three - Drill the Mounting Holes
1. Set the mounting bracket in place on the mounting surface. Mark the mounting screw locations with a pencil or punch.
2. Set the mounting bracket aside, and drill the mounting screw holes using the recommended drill bit.  

Step Four - Run the Cables
1. If the cables must pass through a hole underneath the mounting surface, mark and drill a hole centered between the mounting holes.
Note: If the cables must pass through the mounting surface at a different location, drill the hole at that location and pass the cables through from underneath.
2. Insert all cables through the hole from beneath the mounting surface.
3. Pass the cables through the grommet (if the cable hole is underneath the mounting bracket) then press the grommet in place around the cables and into the hole.
4. Pass the cables through the mounting base, out the top of the mounting bracket.
5. Place the mounting bracket on the mounting surface aligned with the drilled holes. Insert the screws into the mounting holes and tighten fully.