Pioneer GEX-FM903XM User 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 recre-
ational 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 vehi-
cle for several hours. (Fig.1)
Fig. 1
No ACC positionACC position
O
N
S
T
A
R
T
O
F
F
A
C
C
O
N
S
T
A
R
T
O
F
F
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.

When using IP-BUS mode (Fig. 3)
Fig. 3
Head Unit
(sold separately)
IP-BUS cable
(sold separately)
To IP-BUS Input
(Blue)
Yellow
To terminal always supplied with power
regardless of ignition switch position.
Red
To electric 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)
To vehicle (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
To terminal always supplied with power
regardless of ignition switch position.
Red
To electric terminal controlled by ignition
switch (12 V DC) ON/OFF.
Fuse holder
To FM car radio
This Unit
Antenna Input
Power Supply
Car antenna plug
Green
(Terrestrial)
Yellow (Satellite)
Black (ground)
To vehicle (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

Installation
Installing the Tuner Unit
Mounting with Brackets (Fig. 6)
Fig. 6
Screw (4 ×6 mm)
Car mat or chassis Bracket
Tapping screw (4 ×12 mm)
Drill 2 to 2.5 mm diameter holes.
Note:
• Before finally installing the unit, connect the
wiring temporarily, making sure it is all connected
up properly, and the unit and the system work
properly.
• Use only the parts included with the unit to ensure
proper installation. The use of unauthorized parts
can cause malfunctions.
• Consult with your nearest dealer if installation
requires the drilling of holes or other modifications
of the vehicle.
• Install the unit where it does not get in the driver’s
way and cannot injure the passenger if there is a
sudden stop, like an emergency stop.
• When mounting this unit, make sure none of the
leads are trapped between this unit and the sur-
rounding metalwork or fittings.
• Do not mount this unit near the heater outlet,
where it would be affected by heat, or near the
doors, where rainwater might splash onto it.
• Before drilling any mounting holes always check
behind where you want to drill the holes. Do not
drill into the gas line, brake line, electrical wiring
or other important parts.
• If this unit is installed in the passenger compart-
ment, anchor it securely so it does not break free
while the car is moving, and cause injury or an
accident.
• If this unit is installed under a front seat, make sure
it does not obstruct seat movement. Route all leads
and cords carefully around the sliding mechanism
so they do not get caught or pinched in the mecha-
nism and cause a short circuit.

Installation
Removing the control unit (Fig. 8)
Fig. 8
Insert the release plate that comes with the
unit as shown in the illustration.
Pull it towards you.
Installing the Control Unit
Installation using the flush mounting bracket (Fig. 7)
Fig. 7
Screws
Fit the flush mounting bracket into
the opening in the dashboard, raise
the claws of the bracket with a flat-
bladed screwdriver, and secure the
bracket in place.
Dashboard
124 – 126 mm
44–46mm
Open the installation hole.
Holder
Flush mounting bracket
Fasten the control unit with velcro tape (Fig. 9)
Fig. 9
Note:
• Thoroughly wipe off the surface before affixing the velcro tape.
• Obviously, it is very dangerous if the cord gets tangled in the steering wheel, so install the cord so
that it cannot get in the way.
Velcro tape
(Rough surface)
Velcro tape
(Soft surface)
Dashboard