Antenna Adapter

Works with select 2002-up vehicles with amplified antenna (Motorola male to OEM antenna female)

Item #: 12040EU55

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58 Reviews | 1 question - 1 answer

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Lets you connect an aftermarket receiver to the factory antenna cable. Mixes power antenna wire and regular antenna signal and sends +12V through the antenna cable to the AM booster in select vehicles. Includes a wire to connect to your new receiver's power antenna turn-on lead.

If you are installing an FM modulator, you will need this antenna adapter, plus 12040EU20.

Includes Crutchfield's 60-Day Total Satisfaction Guarantee.

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

  • Automotive antenna adapter with VW/Audi/European connector on one end and male Motorola and blue power wire on the other end

Product Research

Features

Compatibility: This antenna adapter allows you to convert the connection for an amplified antenna in selected Volkswagens, Audis, and other European-made vehicles to a standard Motorola (Universal) connection. The adapter works with 2002 and up Volkswagen, Audi, Mini, and other European factory amplified antenna connectors with the mini-style plug and power connection. Please check the Crutchfield Vehicle Selector for compatibility with your vehicle.

For FM Modulators: If you are installing an FM modulator, you will need this antenna adapter, plus 12040EU20.

Dimensions:

  • Male Motorola (Universal) Plug: Length= 2"
  • European Mini-Style Antenna Connector: Length= 0.492", Width= 0.472", Height= 0.437"
  • Coax Cable Length: 12.75"
  • In-line Power Module: Length=2.89:, Diameter=1" foam uncompressed / 0.685" foam compressed
  • Blue Power Wire: 13" from module to metal connector

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.

Antenna Adapter Reviews

Average Customer Review:

58 reviews
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Highly recommended

Written By GP, Plainview, New York on Monday, November 10, 2014

Crutchfield Customer Review (What's this?)

This came free w my radio! Awesome solution for a real problem

Pros: Free! And easy to install

Cons: None

worked great

Written By Jetta tdi, Scotch Plains, NJ on Sunday, August 03, 2014

Crutchfield Customer Review (What's this?)

Worked as it should

Pros: All

Cons: None

Works as advertised

Written By anon, Vancouver, BC on Friday, June 20, 2014

Crutchfield Customer Review (What's this?)

No complaints. Radio reception is just as good as the original. I connected the power line to the constant 12v going to the new deck.

Nice

Written By TB, Holland, MI on Monday, June 02, 2014

Crutchfield Customer Review (What's this?)

Worked great with the factory antenna of my VW Passat.

Pros: Perfect fit, easy to install

Cons: Ground attachment not very robust

Must have

Written By John C, Owasso on Monday, May 26, 2014

Crutchfield Customer Review (What's this?)

You have to have to up grade from factory.

Pros: snap together

Cons: none

It works!

Written By carytown, Richmond VA on Thursday, May 08, 2014

Crutchfield Customer Review (What's this?)

Works perfectly on my 2003 Golf. The whip antennas on this vehicle need an antenna amplifier.

Pros: Long cord for lots of reach and routing flexibility

Cons: none

Great

Written By Twan, Winter Garden, FL on Friday, March 21, 2014

Crutchfield Customer Review (What's this?)

Works great!

Antenna Adapter

Written By Anonymous, Houston, TX on Wednesday, March 12, 2014

Crutchfield Customer Review (What's this?)

Stupid easy. just plug it in and go!

Antenna adapter

Written By ShawnW, Henrico, Va on Monday, February 17, 2014

Crutchfield Customer Review (What's this?)

Fairly simple install, radio works as well as it did before the upgrade. Only difficulty is finding a place for all the wires from this and the new harness.

Pros: Easy quick install

Cons: Finding space for all the wires

awesomeness

Written By DillonC, Reidsville, NC on Saturday, February 01, 2014

Crutchfield Customer Review (What's this?)

I can pick up more stations now than I could before. Easy plug and play, the only thing is its so long, you have to wrap the wires in a loop and tuck them away

Pros: Plug and play

Cons: Size and length

Antenna Adapter

Written By vinnyy, NY on Friday, January 24, 2014

Crutchfield Customer Review (What's this?)

easy to use

Pros: easy to use

Antenna Adaptor for 2002 Volkswagen Jetta

Written By Marc M, Manchester, NH on Wednesday, January 22, 2014

Crutchfield Customer Review (What's this?)

For the life of me, I couldn't get the antenna adaptor to stay secure to the antenna lead. They went together, but there was nothing to really secure the two parts. I ended up wire-tying the antenna lead to the plastic flange on the adaptor in order to secure them - hopefully it stays put!

Pros: Works when I finally got it attached

Cons: Wouldn't secure to antenna lead

Simply and trivially does its essential job

Written By bobatious, near Seattle, WA on Wednesday, January 15, 2014

Crutchfield Customer Review (What's this?)

Once wired correctly, this adapts and amplifies the 50 ohm connection to the car's antenna with proprietary connector, to the 75 ohm connection with usual motorola-style car jack in the aftermarket head unit. It works well and the resulting reception is at least as good as with the factory (VW Monsoon) radio, which did this internally.

Pros: Simple, works well.

Cons: None - does require power connection to do its (amplification) job

Antenna Adapter

Written By Anonymous, vashon, wa on Friday, January 03, 2014

Crutchfield Customer Review (What's this?)

easy install - works as advertised

Easy Install

Written By SamK, Petal, MS on Tuesday, December 03, 2013

Crutchfield Customer Review (What's this?)

Plug and play....'nuff said about that. Everything works

Pros: Easy install

Cons: None

Antenna Adapter

Written By gersumabat, San Diego, CA on Tuesday, December 03, 2013

Crutchfield Customer Review (What's this?)

Did the job

Pros: Easy to install

Cons: Not sure if it's amplifying or attenuating some of my stations, still checking

Antenna Adapter

Written By Anonymous, Aguanga, ca on Wednesday, November 27, 2013

The end that was supposed to fit into the antennae wire didn't fit. I had to remove the cap and tape it.

Pros: appears to do the job.

Stay away

Written By Dan M, Boulder, CO on Sunday, November 24, 2013

Crutchfield Customer Review (What's this?)

Absolute junk. I have no AM reception and very poor FM reception. It's particularly bad as the factory antenna works VERY well. I can't understand why Crutchfield would carry this junk!

Pros: None.

Cons: Absolutely everything!

Crutchfield response on Tuesday, November 26, 2013 We forwarded this review to our Technical Support team for follow-up. Lifetime tech support comes with every Crutchfield purchase.

Works fine

Written By Hunter, Baton Rouge, LA on Sunday, November 10, 2013

Crutchfield Customer Review (What's this?)

Works as advertised.

Pros: Works

Cons: None

Nice product

Written By Jeremy, Tehachapi on Sunday, September 15, 2013

Crutchfield Customer Review (What's this?)

Nice product easy to install

Pros: Easy installation

Cons: Could have been shorter. Too much extra to tuck back in dash

very good adapter

Written By Anonymous, attleboro,ma. on Tuesday, September 10, 2013

Crutchfield Customer Review (What's this?)

easy connected to oem. antenna.

antenna adapter

Written By jeff h, augusta ga on Sunday, September 08, 2013

Crutchfield Customer Review (What's this?)

Perfect fit. No questions asked. Makes the radio sound perfect

Pros: Everything

Cons: Nothing

Antenna Adapter 2005 Touareg

Written By Thomas, on Tuesday, August 27, 2013

Crutchfield Customer Review (What's this?)

Works well. No problems at all

Pros: You have to have it and it works fine

Cons: Really, none

A must

Written By Gmoney, Ft Washington on Thursday, July 25, 2013

Crutchfield Customer Review (What's this?)

Radio works great with it

Pros: Picks up all stations

Cons: None

Just plugged right in.

Written By Leo, Las Vegas, NV on Tuesday, July 16, 2013

Crutchfield Customer Review (What's this?)

Great FM reception with the built in amp.

Pros: Plug and play.

Cons: None

Awsome

Written By Mike, Plymouth, CT on Wednesday, July 10, 2013

Crutchfield Customer Review (What's this?)

Need this to receive radio stations.

Antenna Adapter

Written By Anonymous, summerville, sc on Tuesday, July 02, 2013

Crutchfield Customer Review (What's this?)

Great product.

Antenna Adapter

Written By Neto, Brooklyn ,NY on Sunday, June 23, 2013

Crutchfield Customer Review (What's this?)

Worked awesome!

Antenna Adapter

Written By Justin c, dewitt, NY on Sunday, May 12, 2013

Crutchfield Customer Review (What's this?)

Horrible

Pros: None

Cons: Everything

Antenna Adapter

Written By Anonymous, Torrance, CA on Sunday, April 21, 2013

Crutchfield Customer Review (What's this?)

It works perfectly on my aftermarket stereo.

Cons: None

2005 Jetta

Written By Peter T, McCloud California on Monday, March 11, 2013

Crutchfield Customer Review (What's this?)

This adapter worked without issue. Radio seems to pick up better reseption.

Pros: Works well

Cons: No issues.

Antenna Adapter

Written By Anonymous, San Jose, CA on Friday, December 21, 2012

Crutchfield Customer Review (What's this?)

easy as 1,2,3....

Love it!!!

Written By M1k3, Tracy, ca. on Wednesday, August 29, 2012

Crutchfield Customer Review (What's this?)

Ez install recepton better than before!!!

Pros: Ez install

Cons: None

Antenna Adapter

Written By Antenna Adapter, Miami florida on Sunday, August 26, 2012

Crutchfield Customer Review (What's this?)

Good, very good

Plug & Play !

Written By P. Jones, Syracuse , NY on Monday, June 18, 2012

Crutchfield Customer Review (What's this?)

Just plug in your factory antenna to one end , and the other to your new stereo back , and good to go .

Pros: Simple .

Cons: None at all .

No instructions

Written By Anonymous, New York on Friday, June 15, 2012

Crutchfield Customer Review (What's this?)

I'm not a mechanic, but I wanted to install my stereo myself. I'd never done anything like that before. This adaptor didn't come with any instructions, and while it didn't end up being hard to figure out, I would've appreciated some direction. Besides that, everything sounds great and comes in perfectly.

Bad

Written By Anonymous, Delaware on Friday, May 25, 2012

Crutchfield Customer Review (What's this?)

Of the 4 stations I listened to with no reception problems I only get 1 now. I ended up buying a different adapter to use that has the dual plug.

Cons: Didn't work

2003 Volkswagen

Written By jansjetta, Grand Junction CO on Tuesday, March 27, 2012

Crutchfield Customer Review (What's this?)

Free with radio purchase and works perfectly, had to cut blue wire connector off to solder directly to head unit wiring.

Pros: Works. Antenna works as well as it ever did.

Cons: Not a custom application, but is simple to install.

Antenna Adapter

Written By Omar, Boston/Brooklyn on Tuesday, March 20, 2012

Crutchfield Customer Review (What's this?)

I was able to use my factory antenna cable connected to this unit that converts it to be able to connect to my after market radio.

Pros: It works

Cons: None really

Must Have

Written By Jay, Indianapolis on Monday, January 23, 2012

Crutchfield Customer Review (What's this?)

I had to have this adapter as I was hooking up HD radio and regular am/fm. So far It seems to be doing the job. I don't believe it improves my reception at all but I had to have it and it seems to do what it's supposed to. I wish it wasn't so large I had to shove this behind my stereo in the dash and it was just to awkward and big. 03 passat W8

Pros: works

Cons: oversized

Works great

Written By swil, gilbert, az on Sunday, January 22, 2012

Crutchfield Customer Review (What's this?)

Works exactly as designed, no issues

Pros: perfect fit

Cons: none

Antenna Adapter

Written By Matt W., Dallas, TX on Sunday, October 02, 2011

Crutchfield Customer Review (What's this?)

Works good, but the power wire had to be spliced into the harness

Does the job

Written By Stace, Chicago, IL on Monday, August 08, 2011

Crutchfield Customer Review (What's this?)

Used this in my VW Eos. Thing is, my factory had *two* antenna leads. This is only a single one. I've seen a double-adapter but couldn't find one in the US. This seems to work okay, but I can't help but think my reception is suffering a little. I don't listen to radio much beyond NPR these days anyway.

It works

Written By Mitch, Atlanta, GA on Friday, April 29, 2011

Crutchfield Customer Review (What's this?)

This antenna worked perfectly for my 2007 VW Passat. The only reason I am
knocking off a star is due to its design (& no fault of Crutchfield). Attaching it is
simple as pie, but I found if you need to disconnect it for some reason, it was a
REAL challenge & a bear to do so. You also have to be very careful not to strip it
when trying to disconnect it. Other than this, it works great and radio reception was
good.

Antenna Adapter

Written By FredP, Pinckney MI on Monday, March 07, 2011

Crutchfield Customer Review (What's this?)

Easy, works great.

Antenna Adapter

Written By dbg, Charlotte, NC on Monday, January 31, 2011

Crutchfield Customer Review (What's this?)

Fits and works perfectly.

Seems to work fine

Written By Luke, Monterey, CA on Saturday, August 07, 2010

Crutchfield Customer Review (What's this?)

I used this for my 2006 Jetta. It installed pretty easily except that the connection part to the factory antenna didn't quite fit. The small tabs on the black piece weren't quite the right size. I did make sure that I got the right connection because I have satellite antenna as well.

After connecting the blue wire to the antenna power source off the radio wiring harness I got a crystal clear signal and everything worked great.

Antenna works fine

Written By Artfield, Rochester, NY on Monday, August 24, 2009

Crutchfield Customer Review (What's this?)

VW roof antennas cannot stand up to carwashes - I've had 4 so far. When that happens I lose my NPR (AM), so I was careful to maintain the signal.

I noticed a 'flea clip' on the end of the antenna lead, so I wired the blue wire from the radio to the adapter, snapped the clip into the empty corresponding space in the adapter and the antenna works fine.

I'm certain that the signal is stronger than with the o.e.m. setup. Unfortunately its increased sensitivity picks up some alternator rf on AM. Mu metal, anyone?

This device works well.


Antenna Adapter

Written By TurboPepe, Independence, IA, USA on Monday, May 18, 2009

Crutchfield Customer Review (What's this?)

Had to experiment with where to hook up the the wire. Both my factory harness and the new stereo have a blue wire, hooking them all together didn't work. Ended up with adaptor wire and new stereo wire providing best reception in my VW.

Works, as long as you know where to hook up blue wire.

Written By Ritchm, Portland, OR on Monday, February 16, 2009

Crutchfield Customer Review (What's this?)

Car-2003 VW GTI I got this as part of an installation kit for a new stereo. First off, there were no specific directions on where to hook up the blue wire. In my case, the harness adapter Crutchfield provided had a blue wire that was labeled antenna and the stereo also had a blue wire for a power antenna. I made the mistake of hooking it up to the harness first. This gave me FM reception, but no AM. I managed to get a volt meter on the wire while the stereo was on and it didn't have any voltage. I also checked the blue wire from the stereo at this time, and it had 12v on it. I had to pull everything back out so that I could solder it to the blue wire from the stereo, then I got both AM and FM reception after that.

It works

Written By Pietro, Tampa, Fl on Wednesday, February 04, 2009

Crutchfield Customer Review (What's this?)

The item did exactly what I needd it to do. I just wish Crutchfield would have let me know that I needed this product when I ordered teh Sirius hard wire installation kit for 2003 Jetta.

Antenna Adapter

Written By Allen, Northern California on Monday, September 22, 2008

Crutchfield Customer Review (What's this?)

One thing that worked fine for me is this antenna. I didn't experience the things that other reviewers had (phew!). I have a 03 Jetta with Pioneer DEH-P3000IB from Crutchfield - the tech support guy actually told me to hook the blue wire to the mystery wire on the harness. (note: there are ground, power, and speakers - those are self explanatory. There's a suspicious one that I haven't the slightest idea what it's talking about -- but Crutchfield said to hook that to the blue wire from antenna.) I was able to get AM and FM just fine... maybe it's picky about the radio or model year that goes with it?

Antenna Adapter

Written By Harry, Beeville, TX on Saturday, April 12, 2008

Crutchfield Customer Review (What's this?)

It works very well. I followed one of the reviews and did not hook up the blue wire when I installed the radio on Thursday night. I had no AM radio reception. This morning I pulled the radio out , removed the blue wire mounting clip, and tied it into the factory and Crutchfield supplied harness antenna power wire (blue w/white stripe). I now receive the AM signal better than I did with the factory radio.

Antenna Adapter

Written By shane, sierra vista ,az on Monday, March 24, 2008

Crutchfield Customer Review (What's this?)

i got this for my vw jetta 03.....cant tune a thing in......funny the old way,i got all the staion in my town.

No Signal

Written By Dave, Cleveland, OH on Monday, April 09, 2007

Crutchfield Customer Review (What's this?)

While this may fit my car, I have lost a majority of FM and AM radio stations. I spend all of my driving time in the city and yet the signal is very very weak.

Correct for Mini...except!

Written By Lewis, Half Moon Bay, CA on Wednesday, December 27, 2006

Crutchfield Customer Review (What's this?)

DO NOT connect the 12V blue wire!!! If you do, AM will not work. Otherwise the adapter works fine. I rated this 2 stars since I had to search the web to find out why AM was not working on my new radio. Hopefully, this review will save someone else time that I wasted getting AM to work.

Get this

Written By Jay, tampa, fl on Friday, March 03, 2006

Crutchfield Customer Review (What's this?)

Got this part for a 2002 vw jetta and its a perfect fit. Highly recommended.

Euro antenna adapter

Written By cdagostino, Fort Wayne, IN on Monday, February 20, 2006

Crutchfield Customer Review (What's this?)

This Euro antenna adapter is the perfect fit for my ride. Highly recommend for any Euro enthusiast.

Questions & Answers Ask the community. Share your knowledge.

1 question already asked

We have not received any answers from other customers on your question. I would recommend reaching out to an Advisor by phone (1-800-324-9695) or online chat. They should be able to help answer your question. [ Krissy  Jun 22, 2014 ]  Staff

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