70-7863 - Uncategorized Metra - Free user manual and instructions

Product Type	Receiver Wiring Adaptor
Brand	Metra
Model	70-7863
Compatibility	Aftermarket car stereo receivers with standard wiring
Input Voltage (Switched)	12 Volts DC (Red wire)
Input Voltage (Constant)	12 Volts DC (Yellow wire)
Ground	Chassis Ground (Black wire)
Illumination Wire	Orange wire (connect to receiver's illumination output)
Power Antenna/Amplifier Remote	Blue/White wire (connect to receiver's amp remote)
Speaker Outputs	Front Left (White), Front Right (Gray), Rear Left (Green), Rear Right (Violet)
Subwoofer Output	RCA plug (connect to receiver's subwoofer preamp output)
AUX Input Retention	Requires receiver with AUX input; may need additional adaptor for 3.5mm input
Connection Method	Crimp caps (wire stripper/crimp tool required)
Package Contents	Wiring adaptor harness, user manual
Installation	Plug into factory radio harness in vehicle dash
Safety Notes	Tape off unused wires; ensure all connections are secure
Manufacturer	Crutchfield Corporation (under Metra brand)
Revision Date	11/10/16

Frequently Asked Questions - 70-7863 Metra

What is the Metra 70-7863 used for?

The Metra 70-7863 is a receiver wiring adaptor that connects an aftermarket car stereo to the vehicle's factory wiring harness, enabling proper power, ground, speaker, and accessory connections.

How do I connect the illumination wire?

Connect the orange illumination wire from the adaptor to the illumination wire of your new receiver. If your receiver lacks an illumination wire, tape off the orange wire to prevent shorts.

What if my receiver doesn't have an illumination wire?

If your receiver does not have an illumination wire, simply tape off the orange wire from the adaptor with electrical tape. No further connection is needed.

Can I retain the factory AUX input?

Yes, but your new receiver must have an AUX input connection. For receivers with a 3.5mm AUX input, an additional adaptor may be required.

How do I connect the subwoofer?

Connect the RCA plug from the adaptor's subwoofer harness to the subwoofer preamp output on your new receiver for optimal bass performance.

What tools are needed for installation?

You will need a wire stripper/crimp tool and crimp caps (included or sold separately) to make secure connections between the adaptor and receiver wires.

What do I do with unused wires?

Wrap any unused wires from the wiring adaptor with electrical tape to prevent short circuits against the vehicle chassis or other wires.

How do I match wires between the adaptor and receiver?

Match wires by function, not color. Refer to your receiver's manual to identify each wire's function, then connect the corresponding adaptor wire (e.g., power, ground, speaker).

Is the 70-7863 compatible with all vehicles?

The 70-7863 is designed for use with vehicles that have a standard factory radio harness. Compatibility may vary; consult your vehicle's wiring diagram or contact Crutchfield support.

Where can I find the full manual?

The full manual is included in the package and also available for free download from notice-facile.com in PDF format.

USER MANUAL 70-7863 Metra

Receiver Wiring Adaptor

IMPORTANT

120 70-7863

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.

Revision 11/10/16

STEP 1 -- MATCH & CONNECT WIRES

A. 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 adaptor. Match adaptor and receiver wires by function, disregarding color.
B. Connect the illumination wire from the new receiver to the Orange illumination wire in the wiring adaptor. If the new receiver does not have an illumination wire, tape off the illumination wire in the wiring adaptor.
C. Tape off any unused wires.
D. Make final wiring connections following instructions on the next page.

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Copyright 2016 Crutchfield Corporation

Receiver Wiring Adaptor Connections

120 70-7863

STEP 2 -- CRIMP CONNECTIONS

Tools & Parts Required ▶

Wire Stripper/Crimp Tool Crmp Caps

A. Strip wires back 1/2".

Line drawing of a mechanical component with internal gear-like structure (no text or symbols)

B. Twist wires together and insert in crimp cap.

Diagram showing a cable being inserted into a plug, with no text or symbols present

C. Squeeze middle of cap for tight connection.

STEP 2 -- CONTINUED

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.

Receiver Wiring Adaptor

Generic Illustration

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.

Generic Illustration

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Copyright 2016 Crutchfield Corporation