The Whistler Group SC04 Manuale Utente

DC Power Cable

Connect the supplied DC power cable to a vehicle 
power source:

1.  Disconnect your battery's negative (-) terminal.

NOTE: Disconnecting your battery may reset some 
devices in your vehicle, such as automotive audio 
systems, navigation systems, or alarm systems.

2.  Route the suppled DC power cord between a 

power source and the mounting location for 
your scanner.

3.  Ground the power cord's black wire to your 

vehicle’s chassis.

NOTE: The grounding screw must make complete 
contact with the metal frame of your vehicle.

4.  Connect the power cord's red wire to a voltage 

source that turns on and off with the ignition 
switch, such as a spare accessory terminal in 
your vehicle’s fuse box.

5.  Insert the power plug into the DC power jack on 

the rear of the radio.

6.  Reconnect the cable to the negative (-) terminal 

of your vehicle’s battery.

NOTE: If your vehicle’s engine is running, you might 
hear electrical noise from the engine while scanning. 
This is normal.

WARNING: The DC power cord is equipped with 
an inline fuse. This fuse protects your scanner and 
your vehicle from damage in case of equipment 
malfunction or a short circuit. Do not remove the 
inline fuse holder from the DC power cord. If the 
fuse blows, replace it with a 2A fuse and apply power 
again. If the fuse blows again, check all wiring for 
short circuits, and check the radio for a malfunction.