ENGLISH
E-20
Connections
Warning
•To prevent short circuit, remove the key from the ignition
and disconnect the battery’s (–) terminal.
•This unit is designed for negative ground 12 V DC operation
only. You can not use it for 24 V or other types of car batteries.

Connection procedure

Caution

•DO NOT connect any speaker wires to the metal body or
chassis of the vehicle.
•DO NOT connect the speaker common (–) wires to each
other.
•Connect each speaker wire directly to each speaker terminal.
•All speaker common (–) wires must remain floating.
ie. No common connections or connection to vehicle grd.
•Connect each pair of speaker leads only to a single speaker
(or speaker system) that has an impedance of least 4 ohms,
as well as 50-watt power-handling capability.
•Do not connect speaker leads to any inputs on external
amplifiers. This will cause damage to the internal amplifier
of this unit.
1Make sure the car’s ignition key has been removed.
2Disconnect the negative (–) terminal of the car’s bat-
tery.
3Connect the wiring harness wires in the following
order : Ground wire (Black), +12V Constant Power
Supply (Yellow), +12V Accessory/Switched (Red) and
Power Antenna/Amplifier Turn On (Blue), and tape
each so they do not come in contact with each other.
4Connect the speaker wires of the wiring harness.
5Connect the car’s antenna terminal to the antenna
socket of the unit.
6Connect the detachable wire harness to the unit.
7Reconnect the negative (–) terminal of the car’s bat-
tery.
8Start the car’s engine.
9Make sure the unit operates properly.
10 Defeat Demo mode. (See page 7.)

Connection procedure

(White)
(White/Black)
(Gray)
(Gray/Black)
(Green)
(Green/Black)
(Violet
(Violet/Black)
Left
Speaker
Right
Speaker
Do Not
Connect
Front Left
Speaker
Front Right
Speaker
Rear Left
Speaker
Rear Right
Speaker
(White)
(White/Black)
(Gray)
(Gray/Black)
(Green)
(Green/Black)
(Violet
(Violet/Black) Do Not
Connect
2-speaker System4-speaker System
+12V Constant Power Supply (Yellow)
+12V Accessory/Switched (Red)
Ground Wire (Black)
Power Antenna/Amplifier Turn On (Blue)
ANTENNA PLUG
ANTENNA SOCKET
In the case of a 2-speaker system,
tape the ends of unconnected
terminals to prevent short circuit

Preamp Out/Line Out Connections

•Since this unit has Line Level Outputs, you can use an amplifier to upgrade your vehicle stereo system.
External Amplifier
Sub-Woofer
External Amplifier
Rear Speaker Front Speaker
RCA Line-out Jacks
PREOUT
REAR
PREOUT
FRONT SUBOUT
L
R
RCA Line-out Jacks
•Connect a patch cable (not supplied) from the White and Red RCA line output jacks of the unit to the line input terminals of
the external amplifier.
For connection to optional
CD changer or AUX-IN ca-
ble #7 607 897 093
San Jose MP41_body_en 8/28/01, 6:04 PM20