Metra 70-2003 Receiver Wiring Harness

Connect a new car stereo in select 2000-08 vehicles

Item #: 120702003

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Metra 70-2003 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 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
  • illumination
  • dimmer
  • left front speaker +/-
  • right front speaker +/-
  • left rear speaker +/-
  • right rear speaker +/-

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

What's in the box?

Download owner's manual

  • Receiver wiring harness
  • 8" Red wire
  • Instructions

Product Research

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 * +12 Volt Accessory
Yellow +12 Volt Constant
Black Chassis Ground
Blue Amp Turn-On
Empty (none)
Orange Illumination
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 additional red wire in the package is not needed.

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

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.

Metra 70-2003 Receiver Wiring Harness Reviews

Average Customer Review:

73 reviews
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need I say more

Written By Anonymous, Santa Barbara, Calif on Monday, October 27, 2014

Crutchfield Customer Review (What's this?)

worked great

Pros: fits

Sam

Written By Sam, Raymond NH on Wednesday, September 10, 2014

Crutchfield Customer Review (What's this?)

Makes the install super easy.....

Cons: NADA!

Without it I'd be pulling my hair out

Written By David S., Higganum, CT on Wednesday, August 27, 2014

Crutchfield Customer Review (What's this?)

Makes the install so easy. I/2 hour total.

Worked as promised.

Written By Jym396, Pittsburgh, PA on Saturday, August 02, 2014

Crutchfield Customer Review (What's this?)

Worked as promised. Was pretty easy to do. Quick delivery.

Pros: Nice product

Cons: None

Easy to use

Written By MDP, Woodbury, MN on Monday, June 16, 2014

Crutchfield Customer Review (What's this?)

Great adapter

Pros: Easy

Good stuff

Written By Nick G, Irving, texas on Tuesday, June 03, 2014

Crutchfield Customer Review (What's this?)

Worked great. Made my install go quick and painless

Pros: Easy, simple, a monkey could use it.

Cons: Did not come with wire crimps, but I made use of my electrical tape.

Metra 70-2003 Receiver Wiring Harness

Written By RyuunosukePanda, Peoria, ILL on Wednesday, April 30, 2014

Crutchfield Customer Review (What's this?)

Great add-on to make it look professional.

good fit

Written By Anonymous, Kissimmee, Florida on Monday, April 28, 2014

Crutchfield Customer Review (What's this?)

Fit great, easy to understand instructions

Pros: easy to understand instructions

Cons: none

Metra 70-2003 Receiver Wire Harness

Written By litros, Los Angeles CA on Friday, April 11, 2014

Crutchfield Customer Review (What's this?)

so easy to install,

Pros: great value, (free)

Cons: none

Harness

Written By Giovanni, Denver, CO on Tuesday, April 01, 2014

Crutchfield Customer Review (What's this?)

Nice bonus when bought. Easy install

Metra 70-2003 Receiver Wiring Harness

Written By Trucktecz, Aurora co on Sunday, March 30, 2014

Crutchfield Customer Review (What's this?)

Perfect and easy to use.

Metra 70-2003 Receiver Wiring Harness

Written By Anonymous, Chesapeake, va on Sunday, March 23, 2014

Crutchfield Customer Review (What's this?)

Allows the hookup of aftermarkets radios without cutting up factory harness easy to use and makes it a simple install.

Wire Harness

Written By Luvmychi3, Wisconsin on Tuesday, February 04, 2014

Crutchfield Customer Review (What's this?)

Works great.

Metra 70-2003 Receiver Wiring Harness

Written By J. B, Hollywood, MD on Tuesday, January 07, 2014

Crutchfield Customer Review (What's this?)

Perfect fit.

Worked perfectly

Written By Dan, Central IL on Friday, January 03, 2014

Crutchfield Customer Review (What's this?)

The wire colors matched the Kenwood Radio exactly and the Schematic matched as well. I used Solder and Shrink Tube to make the connections. Making connections any other way is giving entropy an easy shot at oxidization and future disappointment.

Pros: Matching wire colors and schematic

Cons: none

Sony MEX-BT4100P install

Written By Tom T, Colorado Springs, CO on Thursday, January 02, 2014

Crutchfield Customer Review (What's this?)

Color coding with instructions made installation easy

Pros: Color coding with instructions made installation easy

Cons: My son did part of the installation, but I did the soldering of the Sony MEX-BT4100P wire harness to this harness, as he does not have soldering experience. Recommend wire crimps for those that do not know how to solder.

Excellent product

Written By JET, Fort Myers, FL on Wednesday, January 01, 2014

Crutchfield Customer Review (What's this?)

This is a top quality adapter, especially when you consider that Crutchfield throws it in for free with the purchase of most head units. Aside from the easy to follow included wiring diagram, each wire is individually and clearly marked along their length, making having to refer back and forth to the diagram unnecessary. Paired up perfectly to the factory harness and everything worked when done!

Pros: Easy to follow diagram, clearly marked wires.

Cons: None

Metra 70-2003 Receiver Wiring Harness

Written By Anonymous, Tampa, FL on Friday, December 20, 2013

Crutchfield Customer Review (What's this?)

A must....and the price is right.

Makes life that much easier!

Written By Kevin S, 73145 on Wednesday, December 04, 2013

Crutchfield Customer Review (What's this?)

Thanks to Crutchfield this was the easiest install! Last time I ordered from here was 15 yrs ago and they were exactly as I remembered! And hey it's free.....what better service can you ask for!

Customer Service

Written By Mike C, Springfield, Pa on Friday, November 08, 2013

Crutchfield Customer Review (What's this?)

Just needed a adaptor for a car radio we purchased for 1 car to another. The Customer Serevice, went over everything, got me the part info needed, and sent me electornic document's, so I could preview.

Pros: Customer Service is the best.

Cons: no Cons here!

Receiver Wire Harness

Written By Robd94, Ontario, Canada on Wednesday, November 06, 2013

Crutchfield Customer Review (What's this?)

Very easy install from my '03 Matrix with factory amp to my new Sony. Just match the coloured wires and plug into the vehicle.

Pros: Very good instructions, Customer support A1,

Cons: None

Receiver Wire Harness

Written By pyleman, Michigan on Sunday, October 06, 2013

Crutchfield Customer Review (What's this?)

Used this adapter to put a JVC KD-DV5100 head unit in my 2007 Pontiac Vibe. It was my first time installing a head unit, and was not difficult due to the included instructions and clearly marked wires on the adapter unit. I used Posi-Products connectors (part #142PT2049) for wiring in the adapter.

Pros: All wires clearly marked, good instructions, inexpensive

Cons: None

Pig tale review

Written By Harleyroyh43, Washington pa on Friday, July 05, 2013

Crutchfield Customer Review (What's this?)

Perfect fit

Pros: Colors match and plug is tight .

Cons: Not a one !

Works as promised

Written By LKIII, St. Louis on Thursday, July 04, 2013

Crutchfield Customer Review (What's this?)

This purchased to install a Pioneer FH-X700BT into a 2005 Hyundai Santa Fe. It works as promised with no issues during installation.

Pros: Works!

Cons: None that I can see.

Receiver wire harness

Written By Mike C, Reno, NV on Monday, June 24, 2013

Crutchfield Customer Review (What's this?)

Great product, could not do the installation without this adapter.

Pros: Perfect fit and the butt connectors work great too.

Cons: None

You have to have this !

Written By Mr 37x, Inver Grove Minn on Saturday, May 18, 2013

Crutchfield Customer Review (What's this?)

Just what the doctor ordered

Pros: The instructions were spot on. Just make sure to solder your joints and use shrink boot.

Cons: Did not come with a 6 pack.

Great product

Written By Danny, OKC, OK on Friday, May 03, 2013

Crutchfield Customer Review (What's this?)

worked like a champ. Wiring diagram provided by Crutchfield was a plus

Pros: easy

Cons: none

A must have

Written By Marcus, Nebraska on Wednesday, April 10, 2013

Crutchfield Customer Review (What's this?)

Goes without saying this is a must have when replacing a OEM unit so that you don't have to cut the existing recepticle from the factory wire harness and try to match up all the wires in the dash. If you ever want to put the OEM back in, it's plug and play. Forget crimping or wire nuts to connect this harness wires to the radio's harness. Solder and shrink wrap is the only way to go and anyone can do it. You'll be much happier in the long run.

Pros: Solid instructions, good labeling of wires, vehicle specific plug.

Cons: To easy.

Works well for my Pontiac vibe

Written By Anonymous, Oklahoma City, OK on Saturday, February 02, 2013

Crutchfield Customer Review (What's this?)

It was free with purchase. Wired up easily and works as designed!

Pros: Free for me and works as designed

Cons: Nome

Metra 70-2003 Receiver Wiring Harness

Written By Cyndi, Boston, MA on Monday, January 28, 2013

Crutchfield Customer Review (What's this?)

This was pretty standard and easy to install with the kit.

GM Wire Harness

Written By Spaxle, Wichita on Tuesday, January 22, 2013

Crutchfield Customer Review (What's this?)

Quality harness/connector.

Pros: A must have for connecting an after market radio.

Cons: None

2004 S-10 Blazer - Worked like a champ! Easy!

Written By Larry0071, Pittsburgh, Pa. on Thursday, January 03, 2013

Crutchfield Customer Review (What's this?)

15 minutes with the soldering iron and shrink tubing and I was in the money! Simple instructions, I verified the Pioneer AVH-P3400BH head unit colors all aligned with the adapter plug colors and then went to town soldering each connection for the best connection I could get. Each solder joint was sealed off with shrink wrap tubing to protect the solder locations from shorting out against anything. This makes installation of a new head unit such a simple task. Please, solder your connections!

Pros: Quick and easy No modification of vehicle wire harness Click and play after soldering to head unit leads

2003 Vibe, connect the blue and white cable

Written By Ezra, Harrisburg, PA on Saturday, December 29, 2012

Fits tight, clips right in, works great. Our 2003 Vibe has a moonroof, which means it has the 'moon and tunes' package, so you must connect the blue and white cable on the harness to the blue and white on the other end.

Wire Harness

Written By Bob, Eatonville, Wa on Saturday, December 29, 2012

Crutchfield Customer Review (What's this?)

Good product. Comes with the stereo. Fits.

Pros: Fits, works. comes with the stereo

Cons: Have to be careful to double check the wiring schematics. Not really a con.

Good Harness

Written By D.M.Morvant, sulphur, LA. on Friday, December 28, 2012

Crutchfield Customer Review (What's this?)

Harness does the job.

Pros: Free from Crutchfield

Cons: none

Necessary for an upgrade

Written By GH, Wichita, KS on Wednesday, December 26, 2012

Crutchfield Customer Review (What's this?)

Made the installation simple. This was for an aftermarket stereo for a 2005 Santa Fe, it plugged right in and the color coding and wiring diagram were perfect.

Pros: Connected perfectly and schematic made it easy.

Cons: None

Made it simple

Written By Henry, Bethel, DE on Wednesday, December 19, 2012

Crutchfield Customer Review (What's this?)

Don't try with out this . Follow directions , plug it in cant be better. No cutting or splicing use factory wires

Pros: Simple to use , pre marked wires, factory harness direct fit.

Bravo!!

Written By Henri, Gulport, ms on Friday, December 14, 2012

Crutchfield Customer Review (What's this?)

Clear instructions, easy to install and worked right the first time--completely satisfide.

Pros: everything

Cons: nothing

Perfect Wire Harness

Written By Richie, Long Beach, Ms on Sunday, November 25, 2012

Crutchfield Customer Review (What's this?)

Item is awesome. Just connect the wires that needed to be connected to the head unit and plug in.

Pros: Easy to install

Cons: none

PERFECT FIT

Written By LARRYH, APACHE OK on Tuesday, November 13, 2012

Crutchfield Customer Review (What's this?)

PERFECT FIT JUST LIKE KRAMER SAID

Worthwhile accessory

Written By Vulkrider, Olney Md on Thursday, October 18, 2012

Crutchfield Customer Review (What's this?)

The colors are well marked so installation is easy.

Pros: Easy to use.

Cons: None

No Problems

Written By Jeremy, Indianapolis, IN on Monday, August 27, 2012

Crutchfield Customer Review (What's this?)

All the wires are clearly labeled with what they are and they all matched the colours of the wires to which they needed to be connected. Wire was a good gauge and soldered well. The actual install was simple and I had no problems. This is exactly what you need and no more or no less.

Product is fine but...

Written By WSC, Seattle on Tuesday, July 24, 2012

Crutchfield Customer Review (What's this?)

This harness is fine but it would have helped to have the posi- connectors for car stereos recommended with this product. The screw caps we used initially broke the (very fine) wires and we had to do it over. Most butt-end connectors are too big for these wires. I'm sure people with experience already know this, but as a first time installer it would have helped a lot to have those recommended. I lost 2+ hours because of this.

Pros: Easy to use, clear coding on wires

Cons: Needed a recommendation about wire connections, such as posi-connectors for car stereos.

Metra 70-2003 Receiver Wiring Harness

Written By Dave D, Roseville,CA on Thursday, July 05, 2012

Crutchfield Customer Review (What's this?)

The harness fit perfect in my 2004 Toyota Matrix. I had a question about no AM reception and the power antenna wire leads and 1 call to Crutchfields and they had the answer. Everything works fine.

Cons: None so far

2002 chevy s10

Written By RK, Ephrata WA on Wednesday, June 27, 2012

found out why the dash kit and wiring harness don't fit my 2002 s10. the manufacture date is 2001 which is a differnt set up completely. when you set up your vehicle they should make you get that information as opposed to going by what you think you know, the manufacture date can be found on your door jam and early or late year models will change everything.

Pros: would have been easy if it was the right parts

Cons: early year model parts are different for my truck

Worked the 1st time

Written By Karl K, Chicago IL on Monday, June 11, 2012

Crutchfield Customer Review (What's this?)

Sony installation with harness made wiring simple and quick.

Pros: Schematic and instructions

Wire Harness

Written By Mike E, Bellevue, NE on Tuesday, May 29, 2012

Crutchfield Customer Review (What's this?)

Worked out great. The colors on the wiring harness exactly matched the radio's wires making it easy. The directions were great so that the harness would have worked fine even if the wire colors didn't match.

Metra 70-2003 Receiver Wiring Harness

Written By Anonymous, Radford, VA on Tuesday, January 31, 2012

Crutchfield Customer Review (What's this?)

Wiring clearly labeled

It fit

Written By tvphil, Cave Creek ,AZ on Monday, September 19, 2011

Crutchfield Customer Review (What's this?)

What can you say about a wire harness. I got sent the right one the first time. It fit. Thanks

Metra 70-2003 Receiver Wiring Harness

Written By Anonymous, Columbia,TN on Wednesday, September 14, 2011

Crutchfield Customer Review (What's this?)

This is the correct fit for a 2002 s10 Blazer. Works Great.

Metra 70-2003 Receiver Wiring Harness

Written By KP, Indiana on Saturday, September 03, 2011

Crutchfield Customer Review (What's this?)

Harness fit correctly and the wiring diagram was correct. No issues.

Does mention the possible need for factory integration box

Written By Jeremy, Kalamazoo, MI on Wednesday, August 31, 2011

Whenever I install radios for people I always buy wiring harnesses for easy and neat installation. Bought this for a 04 Aztek and came to find out that it had the door and warning chimes hooked in through the radio (which I guess GM does on newer cars with the premium sound systems). Wish that Crutchfield would have just put a note in the description stating to check and make sure that you made need the integration module. But once I had it worked great.

chuck

Written By chuck, aurora mn on Saturday, June 11, 2011

Crutchfield Customer Review (What's this?)

I thought I got the wrong adapter at first. Quick call to tech support confirmed it was the proper one. All I had to do was stretch the plastic to widen it a bit and it slipped right on to the factory plug. It must have gotten bent during storage or shipping. The wiring was a breeze.

Metra 70-2003 Receiver Wiring Harness

Written By CecilW, Bettendorf, IA on Monday, June 06, 2011

Crutchfield Customer Review (What's this?)

Product is well made and fits fine. I'm not using it as I connect the stereo directly to the battery.

2003 Matrix Wiring harness

Written By MartyM, Orlando Florida on Monday, May 16, 2011

Crutchfield Customer Review (What's this?)

Another great feature of installing a Crutchfield product. Nothing left to
guessing. Wiring up a deck with these accesories is a piece of cake. Only had
to call them up 20 times with questions. Just kidding. Very seamless installation
project.

Vibe GT 2003 Installation

Written By Jeff H, Lauderhill, FL on Monday, April 25, 2011

Crutchfield Customer Review (What's this?)

I could not have accomplish the install without this. This was first rate
product and I'm glad it was part of the install.

Metra 70-2003 Receiver Wiring Harness

Written By Bill, Illinois on Monday, April 18, 2011

Crutchfield Customer Review (What's this?)

I purchased the Clarion as a replacement for the double din stereo in my in-
laws motorhome. I received the stereo, master sheet, GM kit, GM wire harness
and GM antenna adaptor in a timely manner and installed it with no major
problems. I had a couple of simple questions, but they were quickly answered
by the friendly customer service reps. I would recommend Crutchfield to
anyone who likes doing the installs themselves. The prices are very good too!

Kenwood stereo in 2003 Pontiac Vibe

Written By WelshVibe, Obelisk, PA on Wednesday, April 13, 2011

Crutchfield Customer Review (What's this?)

Works great. One problem: after I installed following the instructions and
turned it on, there was no AM reception at all. Called support, unistalled the
stereo and added a connection (blue--blue/white) to power what turns out to be
an electrical component of the antenna (which does not move or retract).
There's no mention of this in the instructions, so beware that you will need to
add an additional connection if you have a car with a stationary powered
antenna. But that's not the harness' fault, is it? Good Product.

Extra Cable

Written By Doug, From Middleville on Wednesday, March 09, 2011

Crutchfield Customer Review (What's this?)

It looked nice when I opened it up and pre-wired it to my new radio only to find out it did not fit my application.

Metra 70-2003 Receiver Wiring Harness

Written By The big "R", Muskegon MI on Tuesday, February 15, 2011

Crutchfield Customer Review (What's this?)

Works good, easy to wire with included instructions

Fit like a glove!

Written By Anonymous, NJ on Thursday, September 23, 2010

Crutchfield Customer Review (What's this?)

Worked great for my 04 Santa Fe!

Not exactly correct for 2005 vibe moon and tunes package

Written By Anonymous, Columbus, OH on Monday, April 19, 2010

The harness fits fine with the stock harness, but this crutchfield harness is missing the blue/white wire that is necessary to connect to the stock amp that is included in the moon and tunes package for a 2005 vibe. I hooked everything up, but no sound. Had to call tech support who was great! Told me to splice the two black wires in the factory harness to the blue/white wire included with the head unit, and voila...sound! Just wish I would have gotten the correct harness so I didnt have to cut my factory harness...which is the point of having an adapter.

Metra 70-2003 Receiver Wiring Harness

Written By Rich, Arlington, VT on Monday, January 11, 2010

Easy to install. Works great and would recommend again.

Worked perfectly

Written By Harvey, St Petersburg, FL on Monday, May 04, 2009

Crutchfield Customer Review (What's this?)

Soldered it to the radio cable and it worked perfectly. I just wish I knew why it has the subwoofer/amp on/off signal as part of the harness. It makes me wonder if there's something about my car I don't know.

wrong

Written By mike, Ionia,MI on Friday, February 27, 2009

Crutchfield Customer Review (What's this?)

Was not the correct part for my 2002 S10 ZR2. It wouldn't even come close to connecting to my factory harness. Thankfully I checked it before connecting it to my radio. If it wasn't included free I would have tried to return it. As it was, I just went to a local electronics store and bought the correct one.

Easy does it.

Written By HsSrvnt, Grants Pass, OR on Friday, February 06, 2009

Crutchfield Customer Review (What's this?)

This was a perfect adapter. My only complaint would be that it did not say whether or not to use the 3A or the 15A for power. I used the 3A for safe keeping reasons, which turned out, I needed the 15A and was told I could have used both. I do not downgrade it because of this though. Everything else was plainly easy. Remember your crimping tools and accessories.

dosn't get any easier

Written By mike, Owosso, Mi on Saturday, January 24, 2009

This is a great product with no room for improvement.
The directions were easy to understand. The wires are clearly marked.
The harness plugged into my factoy harness perfectly.

Metra 70-2003 Receiver Wiring Harness

Written By ToddO, Titusville, PA on Sunday, November 09, 2008

Crutchfield Customer Review (What's this?)

Bad marks on this only because the package was correct but the part was totally wrong. It was corrected on the second try but that left me with my dash tore apart for 4 days.

Perfect Match with Hyundai Santa Fe Harness

Written By Robert, Arlington, VA on Monday, October 20, 2008

Crutchfield Customer Review (What's this?)

I used this to install a JVC HD receiver in my 2004 Hyundai Santa Fe with Monsoon sound system. This is the system with a factory amplifier under the passenger seat. The connector is a perfect match to the car's harness so no cutting or modification to the car's wiring is required. Makes installation very easy. The receiver works flawlessly with the car's amplifier and system.

Metra 70-2003 Receiver Wiring Harness

Written By Jim, St. Louis, MO. on Monday, September 22, 2008

Crutchfield Customer Review (What's this?)

Works great. I took the soldering route, and it was much easier than I had expected. All the wires lined up with my '04 Vibe radio (Moon & Tunes) and the amp still works like usual. Too easy.

Great Item

Written By Mark, Salem, Utah on Monday, September 01, 2008

Crutchfield Customer Review (What's this?)

This adapter makes life so much easier and without making permanent changes to your vehicle. Once you've used one you'll want to have one for every install. Highly recommend it.

Hyundai with Monsoon System

Written By Bill, Florida on Wednesday, June 13, 2007

Crutchfield Customer Review (What's this?)

I used this adapter in a 2003 Hyundai Santa Fe with the Monsoon (aka Delphi) system. If you are taking this path to upgrade your system be aware that there is a factory installed amplifier in your vehicle, probably under the passenger seat but there could also be amplifiers in the doors. Since I bypassed and removed the amplifier I can't comment as to how it may alter the sound quality of a high quality deck passing sound through it.

Metra 70-2003 Receiver Wiring Harness

Written By saskjimmy, Regina Sk, on Sunday, February 06, 2005

This harness fits the 2005 Jimmy as well. A lot of other websites state that a relocation harness is needed for a 2004, 2005 Blazer or Jimmy but that is not the case, this harness will work great for you.

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