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Metra 70-7863 Receiver Wiring Harness

Connect a new car stereo in select 2003-11 Honda models

Item # 120707863

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical...

Find what Fits your car

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical...

California customers:
Please click here for your Proposition 65 warning.

Item # 120707863

In stock

About the Metra 70-7863 Receiver Wiring Harness

Metra 70-7863 Receiver Wiring Harness

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system.

Metra 70-7863 Receiver Wiring Harness

Installation Note: This harness uses your factory amplifier; your new stereo must have three pairs of preamp outputs to connect this harness.

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system.

First, attach the color-coded wires on your Crutchfield-supplied harness to the wires from your new stereo. If you're not using a soldering iron, we recommend that you purchase some wire connectors to secure the connections. Check out our handy article on three ways to connect the wiring harness here.

Now, once this harness is connected to your new stereo, you'll be able to plug right into your car's factory radio connector. This harness makes installing your new stereo easier, and allows you to put the factory radio back when you sell your vehicle or return it at the end of the lease. A detailed instruction sheet comes with the harness. Warranty: 60 days.

Please read this important note: This harness may not contain provisions for every wire needed to complete your installation, and it will not accommodate special navigation, video, or factory steering wheel control connections. You will need a special adapter if you want your factory steering wheel audio controls to work with your new stereo.


What's in the box:

  • 7.5" Receiver wiring harness
  • 13" Subwoofer input harness
  • 12" Aux input harness
MFR #70-7863

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Crutchfield response

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More details on the Metra 70-7863 Receiver Wiring Harness

Stacey B.

Product Research

Wiring Harness: This wiring harness prevents you from having to cut your vehicle's factory radio plug when replacing your factory radio with an aftermarket head unit. Simply solder or crimp the wiring harness to your aftermarket head unit's harness (solder & crimps not included), plug the aftermarket head unit's plug into the rear chassis of the aftermarket head unit, and plug the wiring harness into your vehicle's factory radio plug.

Note: Installation tools, hardware, & accessories are not included & sold separately. Please see accessories tab for recommendations & availability.

Wiring Notes: If the wiring harness is not equipped with a ground wire, you will need to ground the aftermarket head unit's ground wire to the metal chassis of your vehicle. Some vehicle's may require you to bypass the vehicle's factory amplifier (in another location from factory radio) or hardwire certain connections. If your vehicle is equipped with factory steering wheel controls, an additional SWIC adapter is required & sold separately.

Wire Code Chart:

(Power/Amp Harness)

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Ground
Blue/White Power Antenna/Amp Turn-On
Orange Illumination
White RCA Left Front Channel
Gray RCA Right Front Channel
Green RCA Left Rear Channel
Violet RCA Right Rear Channel

(Subwoofer Input Harness)

Wire Color Function
White RCA Subwoofer Channel

(Aux Input Harness)

Wire Color Function
White RCA Left Channel
Red RCA Right Channel

Factory Amp Note: This harness includes RCA connections (instead of speaker wire leads) to connect the aftermarket head unit to your vehicle's factory amp. Your aftermarket head unit must be equipped with front, rear, and sub preamp outputs.

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Customer Q&A

Crutchfield asked: Why did you buy this?
let's my factory options still functional [ Eduardo  Apr 29, 2020 ]
Needed [ Michael  Mar 26, 2020 ]
It was included for FREE as part of the recommended installation [ james  Dec 15, 2019 ]
Came with the bundle [ svendylan  Dec 10, 2019 ]
To make my installation easier [ L  Oct 02, 2019 ]
Crutchfield recommended it. [ ROY  Jan 29, 2019 ]
New radio. [ Wayne  Jan 19, 2019 ]
Needed for installation in a 2007 Element [ Johnny  Nov 26, 2018 ]
Knew this was needed as well. [ David  Oct 11, 2018 ]
Advise from Tatum [ Dominic  Jun 29, 2018 ]
recommended to fit car [ James  Apr 30, 2018 ]
Best [ Ronn  Apr 13, 2018 ]
I want a clean professional installation and this product promises that. [ Juan Francisco  Mar 30, 2018 ]
came with unit [ David  Jan 31, 2018 ]
Free [ Donald  Dec 17, 2017 ]
ease of install [ todd  Oct 13, 2017 ]
Free harness with head unit purchase. [ Jerry  Sep 06, 2017 ]
custom fit [ Michael  Jun 16, 2017 ]
ease of install [ Marlen  Apr 10, 2017 ]
Fit my car [ Roger  Nov 20, 2016 ]
Recommended to simplify installation [ Frank  Aug 28, 2016 ]
Free. Fit [ ERIC  Jan 13, 2016 ]
It was required to install the stereo I picked out. [ Patrick  Dec 18, 2015 ]
So I can utilize my factory amp. [ Rob  Dec 08, 2015 ]

1 question already asked

the part number you show for this item is that of the harness for just keeping the factory subwoofer and aux jack in place. the picture shows several adapters it seems. can you specify what the price here includes?
[ Steve  Aug 12, 2015 ]
1 answer
I forwarded your question to an Advisor and they responded with the following: The harness includes connections to keep the factory amplifier. The new stereo must have 3 pairs of preamp outputs to connect to the harness. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat.
[ Krissy  Aug 18, 2015 ]  Staff

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