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Crutchfield

Metra 70-9003 Receiver Wiring Harness

Connect a new car stereo in select 2001-12 vehicles

for matching vehicles with all car stereos $119+ for matching vehicles with all car stereos $119+
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  • Metra 70-9003 Receiver Wiring Harness

    Wiring harness and included red 12-volt accessory wire

 

Metra 70-9003 Receiver Wiring Harness

This vehicle-specific wiring harness makes connections between your new car stereo and your car's electrical system. It includes a wire bundle with a connector and a separate red wire for the accessory (12-volt switched) connection. This individual 42" red wire must be run from the receiver to the vehicle's fuse panel to provide 12-volt switched power.

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 that you'll use to attach the Crutchfield-supplied harness to your factory harness.

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.

Connections:

  • 12V constant power
  • 12V switched power
  • chassis ground
  • power antenna turn-on
  • left front speaker +/-
  • right front speaker +/-
  • left rear speaker +/-
  • right rear speaker +/-
See more info on this item

Note: Most vehicles will require additional installation parts — please identify your vehicle if you haven’t done so, then check here for a list of parts. You can also call an Advisor for more information.

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research
What's in the box?

Download owner's manual

  • Receiver wiring adapter harness
  • 42" Red wire with female quick slide on one end
  • Fuse tap
  • Instructions

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Features

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 adapter is required and sold separately.

Wire Code Chart:

Wire Color Function
Red *
(Long individual wire)
+12 Volt Accessory
(Not in harness)
Yellow +12 Volt Constant
Black Chassis Ground
Blue Power Antenna
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 individual 42" red wire included with the harness must be run from the receiver to the fuse panel to provide 12 volt switched power.

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

 
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Metra 70-9003 Receiver Wiring Harness Reviews

Average Customer Review:

32 people say:

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1 out of 5

Didn't fit

Written By Chris U., Sewell, N.J. on Tuesday, June 24, 2014
Crutchfield Customer Review (What's this?)
 
Didn't work. Came with the Pioneer head unit to adapt to the stock 2005 MINI Cooper wiring harness. It didn't mate with the stock harness pins correctly and wouldn't produce sound from the rear speakers. I ended up eliminating both sides of the harness and hard wiring the unit directly.
Pros:
It was free!
Cons:
It didn't fit correctly.
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5 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By kenneth, Hermitage, tn on Friday, June 13, 2014
Crutchfield Customer Review (What's this?)
 
great product works perfectly
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4 out of 5

Receiver wire harness

Written By Allen, Cumming, Ga on Monday, January 20, 2014
Crutchfield Customer Review (What's this?)
 
Easy to connect except for Red jumper wire.
Pros:
Easy to install
Cons:
The need for the Red constant power wire and the lack of install instructions. The factory stereo did not have a need for this.
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5 out of 5

Very good harnes

Written By Jesse, Birmingham, AL on Wednesday, January 15, 2014
Crutchfield Customer Review (What's this?)
 
I didn't end up using this because the SWC harness had this part built in but it was very awesome that it was free anyway.
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5 out of 5

Receiver Wire Harness

Written By jg, Benton, Arkansas on Tuesday, September 17, 2013
Crutchfield Customer Review (What's this?)
 
Easy to use with great instructions. Made installation quick and easy on a MINI Cooper
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4 out of 5

Meh, it worked.

Written By Christian., Austin, TX on Monday, September 02, 2013
Crutchfield Customer Review (What's this?)
 
I cannot give it five stars as it is a wire harness that simply worked. Nothing fantastic, but a good product or my installer would have griped about it.
Pros:
Included with purchase of head unit.
Cons:
None
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5 out of 5

A must!

Written By B-rad, Camp Lejeune, NC on Saturday, August 10, 2013
Crutchfield Customer Review (What's this?)
 
Simple harness saves time and effort!
Pros:
Easy
Cons:
None
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3 out of 5

Problem

Written By Chad, Pensacola, FL on Sunday, June 30, 2013
Crutchfield Customer Review (What's this?)
 
It doesn't mount flush. You have to wire in your own constant as well with a fuse tap because the constant in the bmw wiring harness isn't a true constant.
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3 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By Anonymous, Brooklyn ny on Sunday, May 12, 2013
Crutchfield Customer Review (What's this?)
 
Works well.
Cons:
Loss of steering wheel controls.
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5 out of 5

Receiver Wire Harness

Written By Mr L, Somewherein, Va on Saturday, March 30, 2013
Crutchfield Customer Review (What's this?)
 
Easy to use, no real problems noted
Pros:
Snapped right in to my automobile factory harness
Cons:
Not sure it would fit, but Crutchfield tech support came to the rescue.
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3 out of 5

Reviews for the Receiver Wire Harness

Written By Receiver Wire Harness, Chuluota,Fl on Monday, November 05, 2012
Crutchfield Customer Review (What's this?)
 
The wire harness was very easy to snap on however the power to the fuse box(red wire) tend to pop out of the fuse location occassionally.
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4 out of 5

Wire Harness For Saturn Astra - Easy Fit

Written By RCGz, Dallas, TX on Wednesday, July 11, 2012
Crutchfield Customer Review (What's this?)
 
This was a great and easy fit after I struggled to find an adapter to fit the wire harness for my Saturn Astra. Although there are a couple connections from my Pioneer 3400 that don't link and therefore cannot be used, I am thrilled to finally get my new stereo connected and working. It was a very easy install with this. The toughest part was getting the ignition switch power. The fuse box is basically in the trunk of the Astra, so I had to go out and get additional wire to reach the wiper fuse. Maybe there was another choice undr he dash, but I am not aware of it. 5 stars for this if all the functionality crossed over. Otherwise.. awesome!
Pros:
Easy install!
Cons:
Not 100% compatible with my new Pioneer 3400 (missing some connections, and thus features).
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1 out of 5

Not even close.

Written By KdK, APO, AE on Wednesday, May 30, 2012
Crutchfield Customer Review (What's this?)
 
Couldn't give it a zero. Not even close. To put it simply, the harness has 11 wires, the head unit 16, and the car about 27. The ball was dropped with this one, not too happy as I have to wait 2-3 weeks for things I get wherever they station me. Car is a 2005 VW Passat station wagon without the monsoon system. NOT a beginner and NOT even my 10th time completing such task let-alone the first. Probably could make it work, but would defeat the purpose of this harness and saved me a couple of weeks.
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3 out of 5

It works - almost

Written By RBE, SE PA on Sunday, May 27, 2012
Crutchfield Customer Review (What's this?)
 
But for two missing wires, this part would get five stars. Everything fits, it's hard to miss which wires get spliced to the radio's wiring (well, with one exception for the BMW X-3). But this item is missing the dashboard lighting signal, and the fact the BMW X-3 needs power for an external amp was missing from the documentation. Additionally, the information about where to find switched 12 V for the radio (that is, which fuse to tap) was missing. In the end, I had to read through BMW docs to find what I needed - tech support was simply wrong on this point. But everything else was fine, so three stars with two missing for the omissions and error.
Pros:
Things fit, most wiring connections are well described.
Cons:
Two wire connections are missing in the BMW X-3 harness, the power connection information is totally missing.
1 out of 1 people found this helpful
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4 out of 5

Worked great

Written By swil, gilbert, az on Sunday, January 22, 2012
Crutchfield Customer Review (What's this?)
 
Harness and instructions worked great. Colors matched up perfectly.
Pros:
Worked great, color match on wires, good instructions
Cons:
Could provide small clips for insertion of other wires needed, example: steering wheel control adapter. If I had 2 small clips to put on the adapter wires I could have simply plugged them into the new plug and they would have connected to existing car wiring. As it was I had to tap into 2 more wires outside the harness for the optional steering wheel control wires.
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4 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By Anonymous, Union City, CA on Friday, October 28, 2011
Crutchfield Customer Review (What's this?)
 
The part where you have to tap into the fuse box for the power wire is annoying, but it if has to be done, it has to be done.

I like how this adapter has a place to hold the second connector which only plugs into the stock stereo so that it doesn't dangle around.
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3 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By ShaneD, Brandon, MS on Wednesday, August 24, 2011
Crutchfield Customer Review (What's this?)
 
The wire contacts kept falling out of the connector housing.
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5 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By BK, OHIO on Saturday, July 23, 2011
Crutchfield Customer Review (What's this?)
 
Works as advertised
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5 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By Julio C, California on Saturday, February 12, 2011
Crutchfield Customer Review (What's this?)
 
This is the harness to get, fits 2003 GTI perfectly, even though the website says it does not fit, this is the second one of these I've used, (third stereo to get stolen from this car) , it comes with power lead to run to fuse box and you save money since you don't need the PAC interface.
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4 out of 5

Good Kit , It works

Written By AnthonyS, Fort Worth, TX on Thursday, January 27, 2011
Crutchfield Customer Review (What's this?)
 
Good Kit. Strong connections. I dont care for how it taps into the fuse box, but you can
always hardwire it.
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5 out of 5

Fits

Written By Anonymous, Newton, MA on Saturday, April 03, 2010
Crutchfield Customer Review (What's this?)
 
Fits and works as it should.
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2 out of 5

Great!, now what.

Written By Dave, Orlando, FL on Monday, June 22, 2009
Crutchfield Customer Review (What's this?)
 
Love Crutchfield and their products, however, they kinda dropped the ball on this one. The wire harness is very easy to install, but doesn't allow the back door speakers to work on my 2007 Audi A4. And crutchfield did not have remedy for this. Not too pleased with that, sorry Crutchfield, this time you dropped the ball.
2 out of 5 people found this helpful
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4 out of 5

Easy peasy

Written By Matthew, GA on Sunday, June 07, 2009
Crutchfield Customer Review (What's this?)
 
The harness worked great and was a breeze. My only complaint is the fuse box jumper wire required for key power. I'd rather it be worked in somehow other than that way.
2 out of 2 people found this helpful
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5 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By mgb4life2, De Forest, WI on Tuesday, May 26, 2009
Crutchfield Customer Review (What's this?)
 
Having a harness like this saves so much time and makes the installation so much more convenient.
1 out of 1 people found this helpful
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4 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By TurboPepe, Independence, IA, USA on Monday, May 18, 2009
Crutchfield Customer Review (What's this?)
 
Overall very good and works as advertised, didn't come with instructions for backlighting/dimming when dashlights turned on so I successfullly winged it, otherwise it'd have been a 5 of 5.
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3 out of 5

New radio for Golf Gti 2002

Written By paul, San Jose, CA on Sunday, February 08, 2009
Crutchfield Customer Review (What's this?)
 
Purchased this radio to replace an existing Pioneer radio that I had previously installed. I used Crutchfield due to the additional free VW antenna connection, VW wiring connection and VW dash pocket. When I got the parcel I realised that the antenna connection was not the correct one for my car neither was the wiring harness and since I didn't have the in dash CD player I didn't need the VW dash pocket although it was a nice though by Crutchfield to include it. Luckily I was able to reuse my existing wiring harness and antenna. I don't know if it is just my car that has the different connections but I ran into the same problem when I swapped out my OME radio with the pioneer.
All in all Crutchfield delivered on time and with all the equipment necessary to do the job eventhough it was the wrong equipment.
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4 out of 5

Almost perfect

Written By eastpt, Point Pleasant, NJ on Friday, October 24, 2008
Crutchfield Customer Review (What's this?)
 
As usual, the folks at Crutchfield made it almost idiot proof to install this unit. My only issue is the unit will not power off when I turn off the car. I have a VW Touareg. Other than that, the wiring was clean and simple.
1 out of 1 people found this helpful
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3 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By Allen, Northern California on Monday, September 22, 2008
Crutchfield Customer Review (What's this?)
 
LIKES: it snaps right in with the factory harness.
DISLIKE: the directions -- the part for antenna was confusing, good thing I called the experts at Crtuchfield, which told me to hook the confusing line to antenna wire. I also didn't like the piggy back for key power onto fuse box. They recommend hooking it to windshield wiper fuse, which makes me nervous since I hate overrides like that. Why couldn't everything be hooked to the wire harness like the factory radio?? Anyway, I had to take the bottom apart, hide the wire inside and into the fuse box. Just like the other person who didn't like piggy backing onto a fuse: it takes some shoving of that prong and trusting what they say -- because it is nerve wrecking to override something you don't quite understand.

END RESULT: I was able to get it to work - but the only way you can turn the radio on is with a key in set to ON, which is okay for me since I don't want the radio to drain the battery if I forget to shut it off. One thing for sure, you can totally rely on the experts @ Crutchfield, they're awesome!
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5 out of 5

Metra 70-9003 Receiver Wiring Harness

Written By Vince, Florida on Sunday, September 21, 2008
Crutchfield Customer Review (What's this?)
 
My only complaint is with VW for using a digital signal for turning the radio on and off.. for a professional install, there is a wire on the ignition that does exactly what the radio did before (turn off when the key is removed).. which is pretty easy to setup.. (I forget the color of the wire, but I think it was brown and red on my 2003 GTI).. just break out the multi-meter and turn the car off (if it still has power you're close) and if you take the key out and the meter goes to 0 power you found it.. just be sure to put a fuse on the wire (so you don't accidently cause more trouble than you want)..
3 out of 4 people found this helpful
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4 out of 5

Installed fine

Written By bikedork, Mpls. on Saturday, September 20, 2008
 
2002 Jetta TDI with the OEM Monsoon double DIN system. The harness works fine. Yes, the accessory clip to the fuse box is a little kludgy, but it isn't difficult to route and hook up. Not sure why the other reviewer could not find the 25 amp fuse that this should hook into. Seemed pretty straightforward to me, although the increased size of the blade of the fuse makes it a bugger to get back into the slot.

VW owners, make sure you add power to the antenna! There was a 12 V lead from the Kenwood amp, that needs to be connected to the power wire of the antenna, but the Crutchfield instructions said nothing about this. Essential for AM reception.

Worst part of the installation was getting the wires to move aside to allow for the head unit to move all the way back.
2 out of 2 people found this helpful
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5 out of 5

How very nice!

Written By Jerry, Palo Alto, CA on Wednesday, August 06, 2008
Crutchfield Customer Review (What's this?)
 
Boy, this makes installation so easy and non-destructive. You can solder the socket to the stereo in the kitchen, then it just snaps into place, no destruction of the car's wiring.

Another rating complained about the extra red wire, and it is a pain, but it's VW that causes the pain, not this wire. For the life of me I can't figure out how VW's radios get turned on and off with the key, there does not seem to be a wire around anywhere! I am guessing there is some kind of signalling setup rather than a switched wire. I ended up tapping into a wire our of that fuse rather than using the supplied tap, but it looked like a good idea. If you look you can find several fuses that are good for this job.

Thanks for including this gear!
2 out of 3 people found this helpful
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1 out of 5

only cause I can't give it zero stars

Written By Candy, Independence, KY on Saturday, August 25, 2007
Crutchfield Customer Review (What's this?)
 
This harness did not work as the instructions said it would. The kit requires you to run a separate wire to fuse box and give you small device to piggy back off of another circuit for switched power. Besides the "iffy" power hook up, the fuse they tell you to tap isn't actually there. I sent mine back.

108 out of 143 people found this helpful
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For a more in-depth review and enhanced detailed information on the Metra 70-9003 Receiver Wiring Harness, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_120709003/Metra-70-9003-Receiver-Wiring-Harness.html ).

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