Crutchfield 120 70-1770 User manual

Receiver Wiring Adaptor
120 70-1770
Revision 04/16/14
Red - 12 Volts Switched Power
Yellow - 12 Volts Constant Power
Black - Chassis Ground
Blue - Power Antenna
STEP 1 -- CONNECT WIRES
Connect 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 adaptor. Match adaptor and receiver wires by function, disregarding color.
If your receiver does not have a Dimmer or Illumination wire, tape off the Orange/White or Orange wire of this adaptor (the one not used).
If there is no Ground wire in the factory harness, connect new receiver’s Ground wire to vehicle chassis.
Individually tape off any unused wires.
Make final connections following instructions on page 3. Power Plug of Harness Set
(see speaker plug instructions on page 2)
*120701770*
Orange - Illumination
Copyright 2014 Crutchfield Corporation
Before starting, compare items on your invoice with items
received. Carefully check through packaging material. If an
item is missing, please call Crutchfield at 1-888-955-6000.
IMPORTANT
A.
B.
C.
D.
E.
Orange/White - Dimmer
Blue/White - Amplifier Turn-On
Orange/Black - (not used, tape off)

Receiver Wiring Adaptor
120 70-1770
STEP 1 -- CONNECT WIRES (continued)
Speaker Plug of Harness Set
White - Left Front Speaker Positive
Violet/Black - Right Rear Speaker Negative
Violet - Right Rear Speaker Positive
Green - Left Rear Speaker Positive
Gray - Right Front Speaker Positive
Gray/Black - Right Front Speaker Negative
Green/Black - Left Rear Speaker Negative
White/Black - Left Front Speaker Negative
Copyright 2014 Crutchfield Corporation
Page 2
The speaker plug in this harness set may not be directly
compatible with your vehicle’s wiring if the vehicle is equipped
with a JBL, or Premium Sound amplifier. An additional adaptor
may be needed to correctly interface an aftermarket receiver
with a JBL or Premium Sound amplifier.
In some cases, Ford’s front speaker negative leads (wires) are
reversed. To test, plug in the wiring harness. Touch the
positive and negative leads of the left speaker to a “C” or “D”
cell battery (1 1/2 volts). If you hear a “pop”, your vehicle is
wired normally. If no “pop” is heard, connect the front speaker
negative leads in reverse. Left front speaker negative
becomes right front speaker negative.
Individually tape off any unused wires.
Make final connections following instructions on page 3.
F.
G.
H.
I.

Receiver Wiring Adaptor Connections
120 70-1770
Page 3
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 2014 Crutchfield Corporation
STEP 3 -- APPLICATION
When ready to install the receiver, plug
the Wiring Adaptor 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 Adaptor that are
not necessary (wires with no
match from the new receiver)
with electrical tape.
STEP 2 -- CRIMP CONNECTIONS
Tools & Parts
Required
Wire Stripper/Crimp Tool Crimp Caps
Unused Wire (tape over bare wires)
Receiver Wiring Adaptor
Generic Illustration
Generic Illustration