JVC KD-X250BT - Manuel (Page 27)

Part list for installation
Faceplate (x1)
! Mounting sleeve (x1)
" Trim plate (x1)
# Wiring harness (x1)
$ Extraction keys (x2)
Basic procedure
1 Remove the key from the ignition switch,
then disconnect the  terminal of the car
battery.
2 Connect the wires properly. (' page 29)
3 Install the unit to your car. (' page 28)
4 Reconnect the  terminal of the car
battery.
5 Reset the unit. (' page 3)
Warning
 The unit can only be used with a 12 V DC power
supply, negative ground.
 Disconnect the battery’s negative terminal
before wiring and mounting.
 Do not connect the Battery wire (yellow) and
Ignition wire (red) to the car chassis or Ground
wire (black) to prevent short circuit.
 Insulate unconnected wires with vinyl tape to
prevent short circuit.
 Be sure to ground this unit to the car’s chassis
again after installation.
Caution
 For safety’s sake, leave wiring and mounting to
professionals. Consult the car audio dealer.
 Install this unit in the console of your vehicle. Do
not touch the metal parts of this unit during and
shortly after the use of the unit. Metal parts such
as the heat sink and enclosure become hot.
 Do not connect the  wires of speaker to the
car chassis, Ground wire (black), or in parallel.
 Connect speakers with a maximum power of
more than 50 W. If the maximum power of the
speakers is lower than 50 W, change the <AMP
GAIN> setting to avoid damaging the speakers.
(
' page 19)
 Mount the unit at an angle of 30˚ or less.
 If your vehicle wiring harness does not have the
ignition terminal, connect Ignition wire (red) to
the terminal on the vehicle’s fuse box which
provides 12
V DC power supply and is turned on
and off by the ignition key.
 After the unit is installed, check whether the
brake lamps, blinkers, wipers, etc. of the car are
working properly.
 If the fuse blows, first make sure the wires are
not touching car’s chassis, then replace the old
fuse with one that has the same rating.
Installation/Connection
Installation/Connection
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