Ground Information; Connect Power - Uniden CMX660 Owner's Manual

The CMX660 can operate on 12VDC power supply.

Ground Information

This radio may be installed and used in any 12-
volt DC negative ground system vehicle.
With a negative ground system, the negative (-)
battery terminal is usually connected to the vehicle
motor block.
Connect the red DC power cord from the radio to
the positive (+) battery terminal or other convenient
point. Then connect the black power cord to the
vehicle chassis or negative (-) battery terminal.

Connect Power

1. Connect the power cord to the power
connector from the radio.
2. Connect the red DC power cord to the
Ignition Switch Accessory Terminal or the
positive (+) battery terminal.
3. Next, connect the black power cord to the
Ignition Switch Accessory Terminal, the
vehicle chassis, or negative (-) battery
terminal.
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