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Metra 70-2001 Receiver Wiring Harness

Connect a new car stereo in select 1994-09 Buick, Cadillac, and Oldsmobile vehicles

Item # 120702001

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 # 120702001

In stock

About the Metra 70-2001 Receiver Wiring Harness

Metra 70-2001 Receiver Wiring Harness

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

Metra 70-2001 Receiver Wiring 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 saves installation time since you won't have to cut factory wires individually, and this also enables you to re-install the factory radio if needed. 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.


  • 12V constant power
  • 12V switched power
  • chassis ground
  • factory amp shield ground (connect to receiver chassis if engine noise is heard)
  • power antenna turn-on
  • factory amplifier turn-on
  • dimmer
  • left front speaker +/-
  • right front speaker +/-
  • left rear speaker +/-
  • right rear speaker +/-

What's in the box:

MFR #70-2001

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Crutchfield response

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More details on the Metra 70-2001 Receiver Wiring Harness

Stacey B.

Product Research

Crutchfield Wiring Harness: Crutchfield wiring harnesses prevent 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 Crutchfield 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 Crutchfield wiring harness into your vehicle's factory radio plug.

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

Wiring Notes: If the Crutchfield 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:

Wire Color Function
Red +12 Volt Accessory
Yellow +12 Volt Constant
Black Ground
Blue Power Antenna
Orange Dimmer
White Left Front Speaker +
White/Black Left Front Speaker -
Gray Right Front Speaker +
Gray/Black Right Front Speaker -
Green Left Rear Speaker +
Green/Black Left Rear Speaker -
Violet Right Rear Speaker +
Violet/Black Right Rear Speaker -

The Crutchfield Car Selector: Please visit the Crutchfield Car Selector for your specific type of vehicle.

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Customer Q&A

Crutchfield asked: Why did you buy this?
As a blind user, it's better than Microsoft windows, just plug and play. [ Terry  May 15, 2020 ]
Because it came free with my order. [ Kory  Dec 09, 2019 ]
It's for a Buick [ Ethan  Jul 01, 2019 ]
Needed item to complete install [ William Scott  Mar 17, 2019 ]
I want to make my install as easy as possible [ Thomas  Feb 17, 2019 ]
Needed it [ Chris  Feb 01, 2019 ]
To connect with vehicles original wiring [ JEFF  Dec 30, 2018 ]
Came with bundled pack. [ Stephen  Dec 11, 2018 ]
Needed this to make the job easier, also part of the installation bundle. [ Russell  Jun 24, 2018 ]
To ease installation [ Chris  Apr 26, 2018 ]
It was free [ John  Feb 27, 2018 ]
came included [ Charles  Feb 21, 2018 ]
It makes installation easier. You do not have to alter factory wiring. Allows you to reinstall factory radio when car is sold. [ Pierre  Dec 19, 2017 ]
Recommended [ Linda Hobbs  Dec 11, 2017 ]
It was included with the order [ Carmen  Dec 01, 2017 ]
required for installation [ RONALD L  Nov 29, 2017 ]
Crutchfield recommended. [ wendell  Oct 15, 2017 ]
Free [ Matthew  Oct 09, 2017 ]
for a sure fit [ perry  Sep 01, 2017 ]
When ordered from Crutchfield, these are a free perk! [ Jason  Aug 11, 2017 ]
Anyone that can follow directions with minimal amount of mechanical ability can install their own high-quality sound system in their vehicle with Crutchfields help [ ROBERT A  Jul 31, 2017 ]
Makes install much easier and you don't have to cut your factory wire harness. [ Mack  Jul 17, 2017 ]
Ease of installation. Period. [ Barbara  May 13, 2017 ]
Simplifies installation of aftermarket radio. [ Chris T.  Apr 28, 2017 ]
had to in order to install my new setup [ Nathan  Mar 20, 2017 ]
Showed needed to fit 1996 LSS Oldmobile [ Michael D.  Jan 29, 2017 ]
Make sure my stereo installation go smoothly. [ Donald  Jan 20, 2017 ]
need it [ kevin  Jan 13, 2017 ]
Was recommended by you. Easier to install into Truck and leave factory harness intact. [ Casey  Jan 03, 2017 ]
needed them and they all make it much easier to do. [ Andrew  Dec 12, 2016 ]
for ease of installation [ Loren  Nov 29, 2016 ]
It is needed to make connection to the factory wiring easy [ Damario  Oct 28, 2016 ]
Part of install kit [ Ron  Oct 26, 2016 ]
Don't have to hack factory harness. Makes it plug and play, [ Keoki  Oct 20, 2016 ]
comes with the stereo ordered free of charge [ Lisa  Oct 17, 2016 ]
The wiring harness was necessary to convert my vehicle harness to the new stereo. Part of the installation package necessary to install the new stereo. [ Gary  Oct 08, 2016 ]
best thing to do is what is recommended for new installation [ Bruce C.  Jul 01, 2016 ]
makes installation easier [ MARIA  Jun 14, 2016 ]
needed to install my 2DIN in my 2002 Regal GS [ Chris  May 26, 2016 ]
part for my new radio to fit my car [ Chase  May 22, 2016 ]
To make my life easier [ Frank  May 09, 2016 ]
For a quick and clean installation [ Victor  Apr 04, 2016 ]
Crutchfield is a no-brainer when they include free wiring harnesses!! [ John  Mar 12, 2016 ]
This was include in the gear to complete the installation. than to Crutchfield for including it!! [ Mike  Jan 09, 2016 ]
Because I'm wiring in a aftermarket sterio that my sister's boy friend gave to me [ Ben  Dec 06, 2015 ]

1 question already asked

Will this harness work my steering wheel controls as well volume?
[ Matthew  Apr 22, 2014 ]
1 answer
The ability to retain steering wheel controls with aftermarket receivers will be determined by the receiver you are using and the vehicle you have. For full information on this type of integration (including the parts you will need) please contact an Advisor by phone (1-800-324-9695) or online chat.
[ Krissy  Apr 22, 2014 ]  Staff

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