Choose an area in the driver's cockpit to mount the CB that is out of the way, but still within reach of the driver or his front seat passenger. Many motor homes have overhead compartments for radios and audio-visual equipment. The CB should be placed conveniently so the driver can operate the controls safely while driving.
Attach the CB mounting brackets to the cabinet/bulkhead with self-drilling sheet metal screws, which work well for both metal bulkheads and wood cabinets.
Hook up the electrical connections for the radio. A single power wire is connected to the red, fused lead on the back of the radio and the accessory circuit of the motor home. The accessory circuit powers any existing radios, and you can splice into this circuit by locating an existing power lead on the back of current audio equipment. This circuit can also be accessed from the vehicle's fuse panel.
Connect a ground wire from the motor home's chassis to the green ground screw on the back of the CB radio. If the unit doesn't have a ground screw, then look for a black wire that leads from the back of the CB unit. This will be the radio's ground wire.
Mount the CB antenna on the outside of the motor home. Make sure that the antenna's base is connected to a piece of structural steel, such as a reinforced corner of the motor home, or a heavy steel vehicle quarter panel. Do not screw the base into the motor home's thin sheet metal skin.
Route the antenna cable from the antenna on the outside of the motor home to the radio, and plug the wire into the back of the CB unit. Drill holes as necessary between the outside of the motor home into the inside passenger area. You may need to drill a few holes through cabinets, fenders, firewalls or the motor home's sheet metal skin in order to connect the antenna to the CB base unit. Seal the hole from the outside to the inside of the motor home with silicone caulk.
