Pioneer AVH-P4950DVD Installation Manual page 3

Note:
• This unit cannot be installed in a vehicle that
does not have an ACC (accessory) position on
the ignition switch. (Fig. 1)
ACC position
• Use this unit in other than the following condi-
tions could result in fire or malfunction.
— Vehicles with a 12-volt battery and negative
grounding.
— Speakers with 50 W (output value) and 4 ohm
to 8 ohm (impedance value).
• To prevent short-circuit, overheating or malfunc-
tion, be sure to follow the directions below.
— Disconnect the negative terminal of the battery
before installation.
— Secure the wiring with cable clamps or adhe-
sive tape. To protect the wiring, wrap adhesive
tape around them where they lie against metal
parts.
— Place all cables away from moving parts, such
as gear shift and seat rails.
— Place all cables away from hot places, such as
near the heater outlet.
— Do not pass the yellow cable through a hole
into the engine compartment to connect to a
battery.
— Cover any disconnected cable connectors with
insulating tape.
— Do not remove RCA caps if RCA cables are
not used.
— Do not shorten any cables.
— Never cut the insulation of the power cable of
this unit in order to share the power to other
equipment. Current capacity of the cable is
limited.
— Use a fuse of the rating prescribed.
— Never wire the speaker negative cable directly
to ground.
— Never band together multiple speaker's nega-
tive cables.
No ACC position
Fig. 1
• Control signal is output through blue/white cable
when this unit is powered on. Connect it to an
external power amp's system remote control or
the vehicle's auto-antenna relay control terminal
(max. 300 mA, 12 V DC). If the vehicle is
equipped with a glass antenna, connect it to the
antenna booster power supply terminal.
• Never connect blue/white cable to external power
amp's power terminal. Also, never connect it to
the power terminal of the auto antenna.
Otherwise, battery drain or malfunction may
result.
• IP-BUS connectors are color-coded. Be sure to
connect connectors of the same color.
• Black cable is ground. This cable and other prod-
uct's ground cable (especially, high-current prod-
ucts such as power amp) must be wired separate-
ly. Otherwise, fire or malfunction may result if
they are accidentally detached.
• Cord function may differ according to the
product, even if cord color is the same. When
connecting this system, be sure to check all
manuals and connect cords correctly.
2