Pioneer GEX-FM903XM Installation Manual
INSTALLATION MANUAL
INSTALLATION MANUAL
<KYMFZ/01G00000>
GEX-FM903XM
Printed in Japan
<CRB1737-A> UC
Connecting the Units
Note:
• This unit is for vehicles with a 12-volt battery and
negative grounding. Before installing it in a recreational vehicle, truck, or bus, check the battery
voltage.
• To avoid shorts in the electrical system, be sure to
disconnect the
≠ battery cable before beginning
installation.
• Refer to the owner’s manual for details on
connecting the power amp and other units, then
make connections correctly.
• Secure the wiring with cable clamps or adhesive
tape. To protect the wiring, wrap adhesive tape
around them where they lie against metal parts.
• Route and secure all wiring so it cannot touch any
moving parts, such as the gear shift, handbrake and
seat rails. Do not route wiring in places that get
hot, such as near the heater outlet. If the insulation
of the wiring melts or gets torn, there is a danger of
the wiring short-circuiting to the vehicle body.
• Don’t pass the yellow lead through a hole into the
engine compartment to connect to the battery. This
will damage the lead insulation and cause a very
dangerous short.
• Do not shorten any leads. If you do, the protection
circuit may fail to work when it should.
• Never feed power to other equipment by cutting
the insulation of the power supply lead of the unit
and tapping into the lead. The current capacity of
the lead will be exceeded, causing overheating.
• When replacing fuse, be sure to use only fuse of
the rating prescribed on the fuse holder.
• To prevent incorrect connection, the input side of
the IP-BUS connector is blue, and the output side
is black. Connect the connectors of the same
colors correctly.
• If this unit is installed in a vehicle that does not
have an ACC (accessory) position on the ignition
switch, the red lead of the unit should be connected
to a terminal coupled with ignition switch ON/OFF
operations. If this is not done, the vehicle battery
may be drained when you are away from the vehicle for several hours. (Fig.1)
Fig. 1
No ACC positionACC position
This product conforms to CEMA cord colors.
• Cords for this product and those for other products
may be different colors even if they have the same
function. When connecting this product to another
product, refer to the supplied Installation manuals
of both products and connect cords that have the
same function.
C
C
A
O
F
N
F
O
S
T
A
R
T
O
F
N
F
O
S
T
A
R
T
When using IP-BUS mode (Fig. 3)
Fig. 3
Head Unit
(sold separately)
IP-BUS cable
(sold separately)
ToIP-BUS Input
(Blue)
Yellow
Toterminal always supplied with power
regardless of ignition switch position.
Red
Toelectric terminal controlled by ignition
switch (12 V DC) ON/OFF.
Fuse holder
IP-BUS Output
(Black)
This Unit
Antenna Input
Power Supply
IP-BUS Input
(Blue)
Multi-CD player
(sold separately)
Green
(Terrestrial)
Yellow (Satellite)
Black
Black (ground)
Tovehicle (metal) body.
Fuse resistor
Antenna Unit
(AN-90XM)
(sold separately)
Connecting the Units
When using ADD ON mode (Fig. 2)
Fig. 2
Antenna switching
unit
Yellow
Toterminal always supplied with power
regardless of ignition switch position.
Red
Toelectric terminal controlled by ignition
switch (12 V DC) ON/OFF.
Fuse holder
ToFM car radio
This Unit
Antenna Input
Power Supply
Car antenna plug
Green
(Terrestrial)
Yellow (Satellite)
Black (ground)
Tovehicle (metal) body.
Fuse resistor
Control Unit
50 cm
5.5 m
1m
5.7 m
Antenna Unit
(AN-90XM)
(sold separately)
Clamp the Control Unit’s Cable
Fig. 4
Protect the Antenna Connector
Fig. 5
Screw (3 × 6 mm)
Clamper
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