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Copyright 2016 Retro Manufacturing, LLC
This diagram illustrates the Quadraphonic amplifier connected directly to any
aftermarket radio using the RCA low level pre-amp outputs of your radio.
WIRING DIAGRAM
(AFTER-MARKET RADIO CONNECTION)
POWER
FRONT
REAR
LEVEL
QUAD 4
LEVEL
HI
HI
FU
LL
FU
LL
MAX
MIN
MAX
MIN
X-OVER
Input Side
CO12 volt
Connect to sw12 volt
Note: 2 sets of male
RCA connectors are
NOT included,
and are required for
RCA connection
To speakers
and power connections
Output Side
Amplifier
Radio
Connect to Battery
(-)
Connect to
chassis/frame of car
(close to amp)
Remove black connector
and use butt connectors or
solder wires together
Use butt connectors or
solder wires together
Included 15 amp fuse
