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Connecting the Unit
Connecting the Power Terminal
• Always use the special red battery and ground
wire [RD-223], which is sold separately. Connect
the battery wire directly to the car battery positive
terminal (+) and the ground wire to the car body.
1. Pass the battery wire from the
engine compartment to the interior
of the vehicle.
• After making all other connections to the
amplifier, connect the battery wire terminal of
the amplifier to the positive (+) terminal of
the battery.
2. Twist the battery wire, ground wire
and system remote control wire.
3. Attach lugs to wire ends. Lugs not
supplied.
• Use pliers, etc., to crimp lugs to wires.
4. Connect the wires to the terminal.
• Fix the wires securely with the terminal
screws.
Fuse (30 A)
Engine
compart-
ment
Interior of
the vehicle
Drill a 14 mm
(1/2 inch) hole
into the vehicle
body.
Insert the O-ring rubber
grommet into the vehicle
body.
Twist
Positive terminal
GND terminal
Power terminal
Battery wire
System remote
control terminal
System remote
control wire
Ground wire
Connecting the Speaker Terminals
1. Expose the end of the speaker wires
using nippers or a cutter by about
10 mm (3/8 inch) and twist.
2. Attach lugs to speaker wire ends.
Lugs not supplied.
• Use pliers, etc., to crimp lugs to wires.
3. Connect the speaker wires to the
speaker terminals.
• Connect the speaker wires, passing them
through the terminal cover.
• Fix the speaker wires securely with the termi-
nal screws.
4. Push on the terminal cover.
10 mm
Twist
Speaker
terminal
Terminal cover
Terminal screw
Speaker wire
Lug
Fuse (30 A)
Battery wire
Ground wire
Lug
Lug
Two-channel mode (stereo)
Two-channel mode (mono)
+
+
≠
≠
+
+
≠
≠
Connecting the Speakers and Input wires
The speaker output mode can be four-channel, three-channel (stereo +
mono) or two-channel (stereo, mono). Connect the speaker leads to suit the
mode according to the figures shown below.
Four-channel mode
Three-channel mode
+
+
≠
+
≠
≠
+
+
≠
+
+
≠
≠
≠
Speaker wire
Input Select Switch
For two-channel input, slide this switch to
the left. For four-channel input, slide this
switch to the right.
RCA input jack A
(Left)
Speaker out A
(Right)
RCA input jack B
Connecting wires
with RCA plugs (sold
separately)
From car stereo (RCA output)
If only one input plug is used, such as when
the car stereo has only one output (RCA out-
put), connect the plug to RCA input jack A,
but do not connect a plug to RCA input jack B.
(Right)
Speaker out B
(Left)
Input Select Switch
For two-channel input, slide this switch to
the left. For four-channel input, slide this
switch to the right.
RCA input jack A
(Left)
Speaker out A
(Right)
RCA input jack B
Connecting wires
with RCA plugs (sold
separately)
From car stereo (RCA output)
If only one input plug is used, such as when
the car stereo has only one output (RCA out-
put), connect the plug to RCA input jack A,
but do not connect a plug to RCA input jack B.
Speaker out B
(Mono)
RCA input jack A
Speaker (Left)
Speaker (Right)
Connecting wire with RCA
plugs (sold separately)
From car stereo (RCA output)
Input Select Switch
Slide this switch to the left.
RCA input jack A
Speaker (Mono)
Speaker (Mono)
Connecting wire with RCA
plugs (sold separately)
From car stereo (RCA output)
Input Select Switch
Slide this switch to the left.
(3/8 inch)