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Metra 40-NI12 Antenna Adapter

Works with select 2007-up Infiniti, Suzuki, and Nissan vehicles — Motorola male to factory OEM antenna female

for matching vehicles with all car stereos $119+ for matching vehicles with all car stereos $119+
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  • Metra 40-NI12 Antenna Adapter

    Front

 

Metra 40-NI12 Antenna Adapter

This antenna adapter lets you connect a new car stereo to the factory antenna cable in select vehicles. The adapter has an OEM female plug on one end and a Motorola male plug on the other. You'll also need another Nissan adapter if you are connecting an FM modulator or add-on CD changer to your factory radio.

Please enter your vehicle information or call an Advisor at 1-888-955-6000 to find out if this adapter is compatible with your vehicle. Warranty: 60 days.

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

  • 12" Nissan antenna adapter cable with a proprietary Nissan factory antenna plug on one end and a standard male motorola plug and bare blue wire on other end

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

Overview: The Metra 40-NI12 vehicle antenna adapter cable allows you to replace your 2007 and up Nissan factory radio with an aftermarket radio that uses a standard motorola antenna input. The adapter cable features a proprietary plug that connects to your Nissan's factory antenna and a standard male motorola plug that connects to your aftermarket radio's antenna socket. The adapter cable also features a blue wire which connects to your aftermarket radio's power-antenna/turn-on lead.

 
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Metra 40-NI12 Antenna Adapter Reviews

Average Customer Review:

69 people say:

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5 out of 5

metra 40-ni12 antenna adapter

Written By Anonymous, espanola nm on Monday, June 23, 2014
Crutchfield Customer Review (What's this?)
 
Makes installing a new stereo easy with out having to go to dealer or audio store great product
Pros:
Quick and easy install
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5 out of 5

Got it done!

Written By FatSteve001, Athens, TN on Friday, April 25, 2014
Crutchfield Customer Review (What's this?)
 
Got the job done and it didn't have a loss in reception.
Pros:
Free, easy and no loss of quality!
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5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Josh D, Lagrange, GA on Wednesday, April 16, 2014
Crutchfield Customer Review (What's this?)
 
Great product
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5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Anonymous, Gilbert, AZ on Wednesday, April 16, 2014
Crutchfield Customer Review (What's this?)
 
very easy to use
Pros:
does the job
Cons:
none
1 out of 1 people found this helpful
Was this review helpful?    Yes | No
 
5 out of 5

Crutchfield Techs Save The Day!

Written By Lil'Yeshua, Pageland,SC on Thursday, April 10, 2014
Crutchfield Customer Review (What's this?)
 
I installed the Kenwood DPX500BT stereo from Crutchfield in my '09 Nissan Versa base sedan,got the antenna adapter free. Crutchfield techs told me that the blue wire goes to the antenna power wire on my radio because the Versa OEM stubby antenna has a signal booster that has to have 12 volts applied to it to be able to receive radio stations clearly.
Pros:
Good forethought Crutchfield
Cons:
None
1 out of 1 people found this helpful
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5 out of 5

A+++

Written By Anonymous, Augusta ks on Wednesday, April 09, 2014
Crutchfield Customer Review (What's this?)
 
this adaptor came free with my purchase which Is nice if I purchased locally would have to pony up 28 bucks Crutchfeild knew I needed it and like a good friend just tree it in the box
Pros:
free
Cons:
did not unwrap itself and instal itself
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5 out of 5

Antenna Adapter for a Nissan

Written By Greg, Florida on Tuesday, March 18, 2014
Crutchfield Customer Review (What's this?)
 
Good product...not sure why Nissan can't have a standard antenna plug in...kudos to Crutchfield to include in kit...and better reception than OEM radio
Pros:
Free adapter...good reception
Cons:
None
Was this review helpful?    Yes | No
 
5 out of 5

Altima antenna adaptor

Written By Morgan, Bridgeville Pa on Tuesday, March 11, 2014
Crutchfield Customer Review (What's this?)
 
Works great
Pros:
Easy to install.
Cons:
No negatives.
Was this review helpful?    Yes | No
 
5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Anonymous, Syracuse, NY on Saturday, March 01, 2014
Crutchfield Customer Review (What's this?)
 
Thanks for the free adapter Crutchfield! Works as intended. Make sure you connect the blue cable to acessory cable on your stereo, otherwise your reception will be bad.
Was this review helpful?    Yes | No
 
5 out of 5

Works as intended - Note the blue wire

Written By MartyB, Park Hills, KY on Saturday, February 15, 2014
Crutchfield Customer Review (What's this?)
 
I read enough of the reviews and was trying to figure out what to do with the blue wire. I did end up connecting the blue wire from the radio antenna to the blue/white power antenna from my radio (Pioneer). It worked great and my reception is awesome.
1 out of 1 people found this helpful
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5 out of 5

good antenna

Written By marco, chicago, il on Tuesday, January 28, 2014
Crutchfield Customer Review (What's this?)
 
Good, perfect fit
Pros:
Easy to install
Cons:
No directions on what to do with the blue wire
Was this review helpful?    Yes | No
 
5 out of 5

Antenna adapter

Written By Nelson, Raleigh ,nc on Monday, January 20, 2014
Crutchfield Customer Review (What's this?)
 
exact match for Nissan Maxima
Pros:
exact fix
Cons:
no instruction, don't know what the blue wire is for
Was this review helpful?    Yes | No
 
5 out of 5

Great but I got confused

Written By Pioneermaniac, Humble,TX on Sunday, January 05, 2014
 
This item is what I needed and it functioned well but I was confused with the blue wire and as to where it was supposed to go to. There were no clear instructions that I found about what to do with it.
Pros:
Easy
Cons:
Confusing
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5 out of 5

Nissan Altima Antenna Adapter

Written By bud, Naperville, IL on Friday, January 03, 2014
Crutchfield Customer Review (What's this?)
 
Easy quick set up
Pros:
Quick connection
Cons:
None
Was this review helpful?    Yes | No
 
5 out of 5

Perfect

Written By It fits and works, Pittsford, NY on Wednesday, January 01, 2014
Crutchfield Customer Review (What's this?)
 
Excellent.
Cons:
None
Was this review helpful?    Yes | No
 
5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Anonymous, Tennessee on Thursday, December 19, 2013
Crutchfield Customer Review (What's this?)
 
Very nice and detailed Antenna adapter. Plug and ready to listen to the radio.
Pros:
Fast and Quick install
Was this review helpful?    Yes | No
 
5 out of 5

Electronics & Entertainment

Written By Rev. Vince D, Livingston, NY on Wednesday, November 20, 2013
Crutchfield Customer Review (What's this?)
 
This integral part of my recent installation was valuable from the standpoint of perceived expansion of reception.
Pros:
Ease of Installation
Cons:
None
Was this review helpful?    Yes | No
 
5 out of 5

Antenna Adapter

Written By alan, kilgore, tx on Tuesday, November 19, 2013
Crutchfield Customer Review (What's this?)
 
Exactly what is needed for Nissan. Make sure you hook up the blue wire to the receiver. I forgot this step and wondered why my receiver wasn't picking up a lot of stations.
Pros:
Perfect
Cons:
none
Was this review helpful?    Yes | No
 
5 out of 5

Anetenna Adapter

Written By DiscoKing, Greensboro,NC on Tuesday, November 12, 2013
Crutchfield Customer Review (What's this?)
 
Thanks Crutchfield for given me the parts to complete this project connected blue wire to blue wire connected other went to factory antenna and antenna into Radio.. Thanks again.
Was this review helpful?    Yes | No
 
5 out of 5

Antenna Adapter

Written By Downtown, Decatur, Ga on Thursday, October 31, 2013
Crutchfield Customer Review (What's this?)
 
This adapter fit perfectly into my antenna cable.
Pros:
Perfect fit for my vehicle. Another part of the solution to ensure a complete installation
Cons:
none
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5 out of 5

Plug and play application

Written By Robbie, Shawnee, Ks on Thursday, October 31, 2013
Crutchfield Customer Review (What's this?)
 
Works perfect, all channels are as clear as the factory receiver. Don't forget to hook up the power antenna wire for optimal reception.
Pros:
Plug and play.
Cons:
None
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5 out of 5

Metra 40-NI12- not needed for 2011 Nissan Frontier SV

Written By Jeff, Colorado Springs on Wednesday, July 31, 2013
Crutchfield Customer Review (What's this?)
 
fine product. but I didn't need it.
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5 out of 5

In like flin

Written By Anonymous, Murrieta, CA on Sunday, July 21, 2013
Crutchfield Customer Review (What's this?)
 
I was not happy that Nissan change the antenna hookup but crutchfield has all the parts to take care of any changes that car makers do.
Pros:
Perfect and priced just right
Cons:
None
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5 out of 5

Antenna

Written By Anonymous, Aurora, IL on Sunday, June 30, 2013
Crutchfield Customer Review (What's this?)
 
Works great
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5 out of 5

too easy

Written By Anonymous, port orchard, wa on Monday, June 17, 2013
Crutchfield Customer Review (What's this?)
 
Click, click......done. easy
Pros:
Super easy
Cons:
None
Was this review helpful?    Yes | No
 
5 out of 5

aweesome product

Written By Desmond, Jefferson City,MO on Saturday, June 08, 2013
Crutchfield Customer Review (What's this?)
 
Perrfect !!
Pros:
Everything
Cons:
Nothing
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5 out of 5

Antenna adapter

Written By ray, irwin,pa on Friday, May 31, 2013
Crutchfield Customer Review (What's this?)
 
Easy to inst. works great with good reception.
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5 out of 5

Works great

Written By Amir, Houston, TX on Monday, May 20, 2013
Crutchfield Customer Review (What's this?)
 
Works great. Must connect the blue wire to power antenna cable on stereo to get good signal.
Cons:
no instruction about the blue wire in the package
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5 out of 5

Please Note

Written By Liskrig, Mass on Monday, May 20, 2013
Crutchfield Customer Review (What's this?)
 
This is a very solid built cable. The only issue I had was that there were no instructions stating to crimp the blue wire into the harness (matching the "Accessory" cable). The radio will still work but the reception is almost non-existent. Don't forget to do this like I did. Not worth taking a star off for my own stupidity though.
Pros:
Quality built cable
Cons:
Non-specific instructions
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5 out of 5

Perfect

Written By ShawnRob, Florida on Monday, April 29, 2013
Crutchfield Customer Review (What's this?)
 
Perfect fit without any problems
Pros:
High quality
Cons:
NONE
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5 out of 5

Great

Written By Eric, Santa Rosa NM on Monday, April 08, 2013
Crutchfield Customer Review (What's this?)
 
Great product
Pros:
Perfect
Cons:
None
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5 out of 5

Great Adapter made for a easy install

Written By DM, Cleveland, OH on Friday, March 29, 2013
Crutchfield Customer Review (What's this?)
 
Just like all of Crutchfield's products, this is of great quality and made for a easy install. I was easily able to connect this to my Pioneer App Radio.
Pros:
Good quality. Easy to install.
Cons:
None.
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5 out of 5

Made the install a breeze

Written By KD5ROK, Amarillo, Tx on Saturday, March 23, 2013
Crutchfield Customer Review (What's this?)
 
Made my install plug in play!
Pros:
Plugged right into the factory antenna connector. Good quality feel.
Cons:
Nope
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5 out of 5

Antena Adapter

Written By Dagoberto A, Round Lake Beach, IL on Friday, March 22, 2013
Crutchfield Customer Review (What's this?)
 
This Antena Adapter was so help full a its so easy to install your self
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5 out of 5

EASY

Written By GEORGE, SAN DIEGO, CA on Wednesday, March 13, 2013
Crutchfield Customer Review (What's this?)
 
EASY INSTALL.
Pros:
EASY INSTALL.
Cons:
NONE
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4 out of 5

Antenna Adapter Review

Written By Joe, Arcadia, FL on Friday, February 01, 2013
Crutchfield Customer Review (What's this?)
 
After I installed my head unit, I noticed that my radio reception was terrible. I neglected to connect the blue wire to the remote turn on wire, I figured I didn't need to because my antenna is not motorized. YOU CANNOT skip the blue wire. You must attach it to your head unit on either the blue/white remote turn on lead or the blue accessory lead. Without doing that, your reception will be terrible (but will work) and may make you think it's your radio or speakers. No idea how it fixes it, but it seems to be a common issue with the Nissan antennas/adapters. Coupled with the new HU, it makes a huge improvement in existing reception over the old HU."
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5 out of 5

Adapter

Written By Frankj, DFW on Thursday, January 24, 2013
Crutchfield Customer Review (What's this?)
 
no problems with the adapter, easy to install
Pros:
Easy to install
Cons:
None
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5 out of 5

adapter

Written By Mike, New York on Monday, January 14, 2013
Crutchfield Customer Review (What's this?)
 
Thank youm, didnt even know I needed it.
Pros:
simple
Cons:
bibe
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4 out of 5

Antenna Adapter

Written By RonT, S.E. Georgia on Wednesday, December 26, 2012
Crutchfield Customer Review (What's this?)
 
Worked well. However the blue wire fell out of the conector and I had to re-install it.
Cons:
Antenna power wire (blue) fell out of connector.
Was this review helpful?    Yes | No
 
5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Deb, Montrose, PA on Friday, October 12, 2012
Crutchfield Customer Review (What's this?)
 
Does exactly what it is supposed to do!
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1 out of 5

Metra 40-NI12 Antenna Adapter

Written By rar, Denver, CO on Friday, October 05, 2012
Crutchfield Customer Review (What's this?)
 
Contrary to what the website says after entering your vehicle type, you don't need this for a 2012 Nissan Frontier.
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4 out of 5

Good product

Written By Matt C., West Memphis, AR on Wednesday, September 12, 2012
Crutchfield Customer Review (What's this?)
 
It is a good product, BUT it could have BETTER instructions
Pros:
Made well Works
Cons:
Need better instructions for blue wire that needs to be crimped with a White/Blue.
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5 out of 5

Works as advertised for 09 Frontier

Written By Don, Atlanta, GA on Saturday, July 14, 2012
Crutchfield Customer Review (What's this?)
 
This was pretty easy to install and my radio works very well.
Pros:
Easy install
Cons:
None
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5 out of 5

Fit 2008 Xterra

Written By Tyler, Denver, CO on Thursday, June 21, 2012
Crutchfield Customer Review (What's this?)
 
This adapter fit our 2008 Nissan Xterra perfectly. We did not connect the blue wire to anything though, because I don't think it's necessary. FM radio works fine, we haven't tried AM.
Was this review helpful?    Yes | No
 
5 out of 5

Worked as advertised

Written By AlanJ, Florida on Saturday, June 16, 2012
Crutchfield Customer Review (What's this?)
 
Matched the 2010 Altima's factory antenna connector and the radio plug-in connector exactly. Don't have a power antenna, so the blue wire wasn't needed (just taped it closed).
Pros:
Exact fit.
Cons:
none.
Was this review helpful?    Yes | No
 
5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Dave, Denver, CO on Tuesday, May 29, 2012
Crutchfield Customer Review (What's this?)
 
Works perfectly.
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5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Anonymous, NJ on Monday, May 14, 2012
Crutchfield Customer Review (What's this?)
 
Worked as advertised.
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5 out of 5

Perfect

Written By Bob P, Central Florida on Monday, May 07, 2012
Crutchfield Customer Review (What's this?)
 
Just connect the blue wire to the matching wire on your radio, plug the Motorola connector into the radio and the vehicle antenna lead into the matching adapter connector and you are done!
Pros:
It's easy and fast to install and works great.
Cons:
none
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5 out of 5

thanks for including this crutchfield!

Written By clayton, colorado on Tuesday, April 24, 2012
Crutchfield Customer Review (What's this?)
 
never would have known that I needed one of these if crutchfield hadn't just included it for free! as simple as it gets to install
1 out of 1 people found this helpful
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5 out of 5

Frontier 2008 CC 4 AW

Written By Walter W, Colorado Springs on Sunday, April 15, 2012
Crutchfield Customer Review (What's this?)
 
Excellent product. The blue wire is necessary to supposedly help boost reception in our 2008 Nissan Frontier. The blue wire on the antenna adapter can be attached to the "remote turn on" or "amp turn on" wire on the new radio. In this case the AVH2400BT Pioneer HU had a blue/white stripe wire labeled "remote turn on".
Pros:
A must have to attach to the Nissan antenna.
Cons:
The only problem is being sure what to do with the "blue wire". Crutchfield had the answer.
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5 out of 5

Works like a charm!!!!!!

Written By David H, Sacramento, CA on Saturday, March 03, 2012
Crutchfield Customer Review (What's this?)
 
A must needed item. Interfaces very easy and I get good radio reception.
Pros:
Easy connection.
Cons:
NONE!!!!
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5 out of 5

Nissan Antenna Adapter

Written By frostyday2, Eliot, ME on Thursday, February 09, 2012
Crutchfield Customer Review (What's this?)
 
What can I say...PERFECT match and connection. Super easy!
Pros:
PERFECT FIT!
Cons:
None
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4 out of 5

Woks good if connect right

Written By Robert, Houston on Sunday, January 29, 2012
Crutchfield Customer Review (What's this?)
 
Be sure to connect the blue wire for Nissian Altima. I used to amp turn on lead and it worked much better. Without the connection of the blue wire it did not work - static.
Pros:
easy and cheep
Cons:
requires research to find what wire to connect the blue lead
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5 out of 5

Good antenna adapter

Written By MarcoG, Hialeah,FL on Friday, January 27, 2012
Crutchfield Customer Review (What's this?)
 
Good thing you have this available,I would have gone crazy trying to find it locally and probably paid more for it.Fit like a glove.
Pros:
Perfect fit.
Cons:
None
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5 out of 5

Nice and Easy

Written By Diabolik, Pittsburgh, PA on Monday, January 23, 2012
Crutchfield Customer Review (What's this?)
 
Not much to say other than it fit perfectly. Seems to be made very well. Nothing like having the right parts to make the install go easier !
Pros:
Fit, Quality
Cons:
None
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5 out of 5

Antenna adapter

Written By Pete P., Windham, Me. on Wednesday, October 05, 2011
Crutchfield Customer Review (What's this?)
 
A nice touch to complete an effortless installation.
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5 out of 5

Works great

Written By Kristen, Teaneck, NJ on Sunday, October 02, 2011
Crutchfield Customer Review (What's this?)
 
This works great, just make sure that you are attaching it to the correct wire that is on the wire harness for you car. I have a nissan versa and I figured that because the wire was blue, that I would attach it to the corresponding wire. I then got nothing but static. I called up tech support and they were great and informed me that it needs to connect to the blue wire with the white stripe on it.
1 out of 1 people found this helpful
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5 out of 5

Nissan Frontier

Written By Brian, Frisco, TX on Thursday, August 11, 2011
Crutchfield Customer Review (What's this?)
 
Great! Fits nice and made the install a breeze!
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5 out of 5

Metra 40-NI12 Antenna Adapter

Written By John O'B, Salem, NH on Thursday, May 05, 2011
Crutchfield Customer Review (What's this?)
 
This item made the installation possible. I have installed many car
stereos,but would not have know about this part without the Crutchfield
installation kit.
Thank you, you saved me a lot of time.

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5 out of 5

fits

Written By jimbo, ca on Sunday, February 13, 2011
Crutchfield Customer Review (What's this?)
 
fits
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5 out of 5

Plugs right in - no problems

Written By ckam, calabash, nc on Monday, December 06, 2010
Crutchfield Customer Review (What's this?)
 
Plugs right in with no problems. Didn't need to hook up the extra wire for antenna power.
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5 out of 5

Metra 40-NI12 Antenna Adapter

Written By Shopper, MD on Sunday, September 26, 2010
Crutchfield Customer Review (What's this?)
 
No problems. Works great on my 2011 Nissan Versa with Sony MEXBT3800U.
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4 out of 5

2009 Versa

Written By Old Guy, Leesburg, VA on Friday, August 14, 2009
Crutchfield Customer Review (What's this?)
 
Works fine. The Versa has an amplified antenna. The blue wire needs 12 volt power (switched) from the radio. A master sheet for the Versa with this information would make this a 5 star rating.
3 out of 3 people found this helpful
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4 out of 5

Fits perfectly, but WARNING!!

Written By Ronald, Fort Wayne, Indiana on Sunday, April 12, 2009
Crutchfield Customer Review (What's this?)
 
Fits my '07 Versa perfectly, but make sure you connect the blue wire to the power antenna/remote control wire from your head unit. Otherwise you will get poor reception. I speculate that there is some sort of a preamp connected to the car antenna that requires the power.
1 out of 1 people found this helpful
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2 out of 5

Does not FIT on 08 Altima 2.5S

Written By Flavaj78, San Jose, CA on Thursday, March 26, 2009
Crutchfield Customer Review (What's this?)
 
Mine did not fit. I ended up not using the harness at all. I just used the antenna connection inside the harness and that ended up fitting to my OEM antenna wire. I also spliced the 'Power Antenna' wire to the OEM Radio wire.
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2 out of 5

2ND TIME'S A CHARM

Written By Nikeceo, Clayton, NJ on Tuesday, February 24, 2009
Crutchfield Customer Review (What's this?)
 
Much like a previous reviewer I too had a faulty adapter sent to me with my
DNX5120. After contacting Crutchfield they sent out a replacement and the
2nd one worked perfectly. The adapter is very cheaply made so it is hit or
miss at best.
1 out of 1 people found this helpful
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4 out of 5

Metra 40-NI12 Antenna Adapter

Written By John, Chicago IL on Saturday, January 31, 2009
Crutchfield Customer Review (What's this?)
 
Worked fine in a 2009 Altima 2.5. Make sure you connect the blue wire to the antenna power from your head unit for best reception.
5 out of 5 people found this helpful
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3 out of 5

Metra 40-NI12 Antenna Adapter

Written By Edward, Southern Alabama on Wednesday, January 28, 2009
Crutchfield Customer Review (What's this?)
 
This adapter was sent by Crutchfield used to connect a new Kenwood headunit to my 2008 Nissan Pathfinder. Once all installed I had problems with the radio reception. Reception was very weak and almost not at all. First thought was the problem was within the head unit. But after a call to Crutchfield tech support, we were able to determine the problem was not the Kenwood unit. Crutchfield sent out a new adapter. After installing the new adapter, the problem was resolved. Reception was restored. Maybe I just got a faulty adapter.
2 out of 2 people found this helpful
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2 out of 5

Doesn't FiT

Written By Frederick, Bensalem, PA on Thursday, July 31, 2008
Crutchfield Customer Review (What's this?)
 
The female antenna adapter socket did not mate with the male Nissan Antenna connector. I had to "Push" the antenna coaxial connector through
the shell and connect to the nissan male connector "outside of the shell and then put tape aound the connection to hold it together. Also had to connect the switched power from the receiver directly to the nissan cable line which powers the Nissan antenna amplifier since I was not using the connector shell of the adapter. Over all a poor fitting adapter, but without it you cannot make the antenna connection.
2 out of 3 people found this helpful
Was this review helpful?    Yes | No
 

1 question already asked

I was confused by that blue wire. No instructions on where it goes. Where does that blue wire go on the receiver? I'm not getting many stations and I have to pull the radio out again anyway to move it forward a little. Thanks! [ David  Mar 18, 2014 ]
1 answer
  • If you purchased the product from Crutchfield, feel free to contact our Tech Support team. They can walk you through the settings on the product and see if there may be a fix. Our toll-free Tech Support number is printed on your invoice, and is also available under the "My Orders" tab in the "My Account" section of our website. If you did not purchase the unit from Crutchfield, then you may want to contact the manufacturer. You can also post your question in our forums: http://community.crutchfield.com. Or try our online support center: http://crutchfield.custhelp.com/app/answers/list/kw/. [ Krissy Staff  Mar 19, 2014 ]

For a more in-depth review and enhanced detailed information on the Metra 40-NI12 Antenna Adapter, please visit the Crutchfield website product page (/ISEO-rccbcspd/p_12040NI12/Metra-40-NI12-Antenna-Adapter.html ).

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