Connecting To An External Speaker - Uniden UM423 AM Owner's Manual

Installing the Hardware

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
the radio, it will also adjust the external speaker volume.
The UM423 AM supports an external speaker with the following
specifications:
•
•
1. Disconnect the
the radio.
2. Connect the BLACK wire of the
WIRE of your external speaker.
3. Connect the RED wire of the
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
UM423 AM.
NOTE: To extend the life of the radio, use waterproof tape to seal
electrical connections.
Minimum impedance of 4 Ohms
Minimum power handling of 10 Watts
accessory cable from the accessory connection on
accessory cable to the GROUND
accessory cable to the POSITIVE (+)
24
knob on
VOLUME-PWR