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Crutchfield 120 70-7550 Operating instructions

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Receiver Wiring Adapter
120 70-7550
Revision 12/13/21
*120707550*
IMPORTANT
Before starting, compare items on your invoice with items
received. Thoroughly check packing materials. If an item
is missing, please call Crutchfield at 1-888-955-6000.
STEP 1 -- CONNECT WIRES
White - Left Front Speaker Positive
Red - 12 Volts Switched Power
Yellow - 12 Volts Constant Power
Gray - Right Front Speaker Positive
Gray/Black - Right Front Speaker Negative
Orange - Illumination
White/Black - Left Front Speaker Negative
Blue - Power Antenna
Violet/Black - Right Rear Speaker Negative
Green - Left Rear Speaker Positive
Green/Black - Left Rear Speaker Negative
Blue/White - Amplifier Turn-on
Violet - Right Rear Speaker Positive
If vehicle is equipped with a factory amp, connect to
amp remote of new receiver.
The White and Gray speaker wires in the wiring adapter will not be used.
Connect the front speaker wires of the new receiver to the Green and Violet
wires of the adapter.
NOTE: 1998-2004 Nissan Frontier regular cab
and king cab with 2-speaker system
Match wires below to the matching function of each wire on your receiver (refer to instructions supplied with receiver). The wire colors of your
new receiver may, or may not, match the wire colors of the adapter. Match adapter and receiver wires by function, disregarding color.
Connect your new receiver's Ground wire to the vehicle's chassis.
Individually tape off any unused wires.
Make final wiring connections following instructions on the next page.
A.
B.
C.
D.
Copyright 2021 Crutchfield Corporation
The front and rear speaker wires of this adapter should be reversed front to
rear. Connect the front speaker wires of the new receiver to the Green and
Violet wires of the adapter. Connect the rear speaker wires of the new
receiver to the White and Gray wires of the adapter.
NOTE: 1998-2004 Nissan Frontier regular cab
and king cab with 4-speaker system
Receiver Wiring Adapter Connections
120 70-7550
Page 2
STEP 2 -- CONTINUED
A. Strip wires back 1/2”.
B. Twist wires together and
insert in crimp cap.
C. Squeeze middle of cap
for tight connection.
Copyright 2021 Crutchfield Corporation
STEP 3 -- APPLICATION
When ready to install the receiver, plug
the Wiring Adapter from the new receiver
or receiver assembly into the factory
radio harness(es) in the vehicle dash.
D. Complete crimp connections
for all necessary wires.
E. Be sure to wrap any wires from
the Wiring Adapter that are
not necessary (wires with no
match from the new receiver)
with electrical tape.
STEP 2 -- CRIMP CONNECTIONS
Tools & Parts
Required4
Wire Stripper/Crimp Tool Crimp Caps
Unused Wire (tape over bare wires)
Receiver Wiring Adapter
Generic Illustration
Generic Illustration
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