Connections
Important
! When installing this unit in a vehicle without
an ACC (accessor y) position on the ignition
switch, failure to connect the red cable to the
terminal that detects operation of the ignition
key may result in battery drain.
O
N
S
T
A
R
T
O
F
F
ACC position No ACC position
! Use of this unit in conditions other than the
following 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 a short-circuit, overheating or mal-
function, be sure to follow the directions
below.
— Disconnect the negative terminal of the
battery before installation.
— Secure the wiring with cable clamps or ad-
hesive tape. Wrap adhesive tape around
wiring that comes into contact with metal
parts to protect the wiring.
— Place all cables away from moving parts,
such as the gear shift and seat rails.
— Place all cables away from hot places,
such as near the heater outlet.
— Do not connect the yellow cable to the bat-
tery by passing it through the hole to the
engine compartment.
— Cover any disconnected cable connectors
with insulating tape.
— Do not shorten any cables.
— Never cut the insulation of the power cable
of this unit in order to share the power
with other devices. The current capacity of
the cable is limited.
— Use a fuse of the rating prescribed.
— Never wire the negative speaker cable di-
rectly to ground.
— Never band together negative cables of
multiple speakers.
! When this unit is on, control signals are sent
through the blue/white cable. Connect this
cable to the system remote control of an exter-
nal power amp or the vehicle’s auto-antenna
relay control terminal (max. 300 mA 12 V DC).
If the vehicle is equipped with a glass anten-
na, connect it to the antenna booster power
supply terminal.
! Never connect the blue/white cable to the
power terminal of an external power amp.
Also, never connect it to the power terminal of
the auto antenna. Doing so may result in bat-
tery drain or a malfunction.
! The black cable is ground. Ground cables for
this unit and other equipment (especially,
high-current products such as power amps)
must be wired separately. If they are not, an
accidental detachment may result in a fire or
malfunction.
This unit
1
c
1 To power cord input
2 Depending on the kind of vehicle, the function
of 3 and 5 may be different. In this case, be
sure to connect 4 to 5 and 6 to 3.
3 Yellow
Back-up (or accessory)
4 Yellow
Connect to the constant 12 V supply terminal.
5 Red
Accessory (or back-up)
6 Red
Connect to terminal controlled by ignition
switch (12 V DC).
7 Connect leads of the same color to each
other.
8 Black (chassis ground)
9 Blue/white
The pin position of the ISO connector will dif-
fer depending on the type of vehicle. Connect
9 and b when Pin 5 is an antenna control
type. In another type of vehicle, never connect
9 and b.
a Blue/white
Connect to system control terminal of the
power amp (max. 300 mA 12 V DC).
b Blue/white
Connect to auto-antenna relay control term-
inal (max. 300 mA 12 V DC).
c Yellow/black
Only for DEH-2300UB, DEH-2300UBB and
DEH-2320UB.
If you use an equipment with Mute function,
wire this lead to the Audio Mute lead on that
equipment. If not, keep the Audio Mute lead
free of any connections.
d Speaker leads
White: Front left +
White/black: Front left *
Gray: Front right +
Gray/black: Front right *
Green: Rear left + or subwoofer +
Green/black: Rear left * or subwoofer *
Violet: Rear right + or subwoofer +
Violet/black: Rear right * or subwoofer *
e ISO connector
In some vehicles, the ISO connector may be
divided into two. In this case, be sure to con-
nect to both connectors.
Notes
! Change the initial setting of this unit. Refer to
SW CONTROL (rear output and subwoofer set-
ting) on page 11.
The subwoofer output of this unit is monaural.
! When using a subwoofer of 70 W (2 Ω), be
sure to connect the subwoofer to the violet
and violet/black leads of this unit. Do not con-
nect anything to the green and green/black
leads.
Power amp (sold separately)
Perform these connections when using the
optional amplifier.
1
3
2
4
55
1 System remote control
Connect to Blue/white cable.
En
13
English
Section
03
Installation
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