Connecting Accessories; Connecting To An External Speaker - Uniden UM355 Owner's Manual

Installing the Hardware

Connecting Accessories

Connecting to an external speaker

You can use an external speaker to monitor the radio from a different part of your
boat or in a noisy environment. If you adjust the
also adjust the external speaker volume.
The UM355 supports an external speaker with the following specifications:
• Minimum impedance of 4 Ohms
• Minimum power handling of 10 Watts
Accessory
connector
13.8V DC
1. Disconnect the accessory cable from the accessory connection on the radio.
2. Connect the BARE wire of the accessory cable to the GROUND WIRE of your
external speaker.
3. Connect the RED wire of the accessory cable to the POSITIVE (+) WIRE of
your external speaker.
4. Be certain all wire connections are secure and that all open wires are adequately
covered.
5. If you are finished connecting all external accessories, line up the arrows on the
side of the accessory cable and connector and connect the accessory cable to
the accessory connector on the back of the UM355.
NOTE: To extend the life of the radio, use waterproof tape to seal electrical
connections.
Accessory
cable
Line up
arrows to
connect
23
knob on the radio, it will
VOLUME-PWR
Red: External Speaker (+) ........Speaker(+)
Bare: GND/External Speaker(-) ...Speaker(-)/GND