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10
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Wiring: Other Radios
Connect the RCA cables from the radio to the Quadraphonic amplifier,
or cut and remove the speaker connector (brown) from the input side of
the amplifier and connect the leads directly. Cut and remove the power
connector (black) from the input side of the Quadraphonic and connect
the leads to the output source. Always use butt connectors or solder when
making direct connections. Next, connect the black GROUND lead to a
suitable grounding point and the yellow CONSTANT lead to the vehicle’s
battery (see page 6). Connect the front & rear speakers to the output side
of the amplifier. This amplifier is NOT bridgeable.
REMOTE/AMP TURN-ON (Blue/White)
POWER ANTENNA (Blue)
Left Front
Speaker
White (+)
White/Black (-)
Right Front
Speaker
Gray (+)
Gray/Black (-)
POWER
QUAD4
Input Side (from radio)
Output Side (to speakers)
MAX
HPF FULL
GAIN
MINMAXMIN
GAIN
HPF FULL
X-OVER
FRONT REAR
Connect ground to chassis or
frame close to the amp.
to speakers and power connections
from radio
GROUND (Black)
Left Rear Speaker
Green (+)
Green/Black (-)
Right Rear Speaker
Purple (+)
Purple/Black (-)
IGNITION/ACC (Red)
Connect yellow lead to battery.
Connect black lead to ground.
GROUND (Black)
CONSTANT +12 Volt (Yellow)
CONSTANT +12 Volt (Yellow)
Use a RetroSound
®
690 Harness for
a cleaner installation.
NOTE: Two sets of RCA
cables are not included.
Use butt
connectors or
solder wires
together.
IMPORTANT
For direct
connections
remove
black
connector.
Use the low-level
(RCA) connections.
IMPORTANT: The Blue/White amplifier
turn-on lead must be connected to your radios
amplifier turn-on lead. Check your radio
manual for correct wire color associations.
Cut and remove the
power connector.
Power Connector
Cut and remove the
speaker connector.
Speaker Connector
OR