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
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
when using the speaker input wire
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.
Connecting the units
En
7
English
Section
03
Summary of Contents for GM-D8500M
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