Lowrance LCX-20C Operation Instructions Manual page 46

Screw
mounting
hole
Front
Install the gimbal bracket. Place the bracket so the arms slope toward
Once a location is determined, use the bracket as a template and mark
the mounting holes and the hole for the cables. Drill a 1-inch (25.4 mm)
hole in the dash for the power, transducer and antenna cables. Screw
the bracket to the mounting surface.
the front of your unit.
38
Cable hole