Connection diagram
1 Special red battery wire
RD-223 (sold separately)
After completing all other amplifier connec-
tions, finally connect the battery wire terminal
of the amplifier to the positive (+) battery
terminal.
2 Ground wire (Black)
RD-223 (sold separately)
Connect to metal body or chassis.
3 Car stereo with RCA output jacks (sold sepa-
rately)
4 External output
If only one input plug is used, do not connect
anything to RCA input jack B.
5 Connecting wire with RCA pin plugs (sold se-
parately)
6 RCA output jack
7 RCA input jack A
8 RCA input jack B
9 Amplifier with RCA input jacks (sold sepa-
rately)
a Speaker output terminals
Please see the following section for speaker
connection instructions. Refer to Connections
when using the speaker input wire on page 10.
b Fuse (25 A) × 2
c System remote control wire (sold separately)
Connect male terminal of this wire to the sys-
tem remote control terminal of the car stereo
(SYSTEM REMOTE CONTROL). The female
terminal can be connected to the auto-anten-
na relay control terminal. If the car stereo
lacks a system remote control terminal, con-
nect the male terminal to the power terminal
via the ignition switch.
d Fuse (30 A) × 2
e Grommet
f Rear side
g Front side
Note
INPUT SELECT (input select) switch must be set.
For details, see Setting the Unit on page 5.
Before connecting the
amplifier
WARNING
! Secure the wiring with cable clamps or adhe-
sive tape. To protect the wiring, wrap sections
in contact with metal parts in adhesive tape.
! Never cut the insulation of the power supply
to feed power to other equipment. Current ca-
pacity of the wire is limited.
CAUTION
! Never shorten any wires, the protection circuit
may malfunction.
Connecting the units
En
7
English
Section
03