Section
03
Connecting the units
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
5 Connecting wire with RCA pin plugs (sold se-
parately)
6 Speaker input terminal
Please see the following section for speaker
connection instructions. Refer to Connections
when using the speaker input wire on page 8.
7 RCA input jack
8 System remote control wire (sold separately)
6
En
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.
9 Speaker output terminals
Please see the following section for speaker
connection instructions. Refer to Connections
when using the speaker input wire on page 8.
a Fuse (30 A) × 2
b Fuse (30 A) × 2
c Grommet
d Rear side
e Front side
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.
! Never ground speaker wire directly or band to-
gether multiple speakers' negative (*) lead
wires.
! If the system remote control wire of the ampli-
fier is connected to the power terminal via the
ignition switch (12 V DC), the amplifier will re-
main on with the ignition whether the car
stereo is on or off, which may exhaust battery
if the engine is at rest or idling.