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 a clean, paint-free metal location.
3 Car stereo with RCA output jacks (sold sepa-
rately)
4 External output
5 Connecting wire with RCA pin plugs (sold se-
parately)
6 Bass boost level remote control
7 Bass boost level remote control wire (6 m)
8 RCA input jack
9 System remote control wire (sold separately)
Connect male terminal of this wire to the sys-
tem remote control terminal of the car stereo.
The female terminal can be connected to the
6
En
auto-antenna relay control terminal. If the car
stereo lacks a system remote control terminal,
connect the male terminal to the power term-
inal via the ignition switch.
a Speaker output terminals
Please see the following section for speaker
connection instructions. Refer to Connections
when using the speaker input wire on the next
page.
b Fuse (30 A) × 2
c Fuse (30 A) × 2
d Grommet
e Rear side
f 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 wire the speaker negative cable directly-
to ground.
! Never band together multiple speaker'snega-
tive cables.
! 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.