Crutchfield 120 70-7903L Receiver Wiring Adapter Owner's manual

Brand
Crutchfield
Model
120 70-7903L Receiver Wiring Adapter
Type
Owner's manual

Crutchfield 120 70-7903L Receiver Wiring Adapter is a device designed to connect a new receiver to the factory radio harness of a vehicle. It enables the user to match and connect wires based on their function, disregarding color. The adapter features various wire connections, including those for speakers, power, illumination, and antenna. Additionally, it provides instructions for crimping connections and wrapping unused wires for a secure and reliable installation. The adapter is compatible with various vehicles and receivers, allowing for seamless integration of new audio systems.

Crutchfield 120 70-7903L Receiver Wiring Adapter is a device designed to connect a new receiver to the factory radio harness of a vehicle. It enables the user to match and connect wires based on their function, disregarding color. The adapter features various wire connections, including those for speakers, power, illumination, and antenna. Additionally, it provides instructions for crimping connections and wrapping unused wires for a secure and reliable installation. The adapter is compatible with various vehicles and receivers, allowing for seamless integration of new audio systems.

Yellow - 12 Volts Constant Power
Red - 12 Volts Switched Power
Blue - Power Antenna
Orange - Illumination
Black - Chassis Ground
Gray - Right Front Speaker Positive
White - Left Front Speaker Positive
Green - Left Rear Speaker Positive
Violet - Right Rear Speaker Positive
Gray/Black - Right Front Speaker Negative
White/Black - Left Front Speaker Negative
Green/Black - Left Rear Speaker Negative
Violet/Black - Right Rear Speaker Negative
Receiver Wiring Adapter
120 70-7903L
Revision 02/03/23
STEP 1 -- MATCH & CONNECT WIRES
*120707903L*
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.
Copyright 2023 Crutchfield Corporation
Blue/White - Amplifier Turn-On
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.
Individually tape off any unused wires.
Make final wiring connections following instructions on the next page.
This harness will connect at the tuner location in your vehicle. Refer to your vehicle's MasterSheet for instructions on accessing the tuner
module.
A.
B.
C.
D.
Receiver Wiring Adapter Connections
120 70-7903L
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 2023 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)
at the vehicle's tuner location. Refer to your vehicle's MasterSheet
for information on accessing the tuner location.
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
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Crutchfield 120 70-7903L Receiver Wiring Adapter Owner's manual

Brand
Crutchfield
Model
120 70-7903L Receiver Wiring Adapter
Type
Owner's manual

Crutchfield 120 70-7903L Receiver Wiring Adapter is a device designed to connect a new receiver to the factory radio harness of a vehicle. It enables the user to match and connect wires based on their function, disregarding color. The adapter features various wire connections, including those for speakers, power, illumination, and antenna. Additionally, it provides instructions for crimping connections and wrapping unused wires for a secure and reliable installation. The adapter is compatible with various vehicles and receivers, allowing for seamless integration of new audio systems.

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