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Best Buy customers often prefer the following products when searching for conversion adapters.

Many cars today, especially those made by foreign automakers, come with a factory-installed auxiliary input for the car stereo. But if you have an older car without this feature, or if you want to integrate your portable media player into the vehicle's audio system, you'll need an adapter to connect the two. Browse the top-ranked list of conversion adapters below along with associated reviews and opinions.

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  1. Metra - Antenna Adapter Reverse for Select 2003-2023 Toyota Honda Mazda Acura Odyssey - Black - Front_Zoom
    Top comment

    "Antenna adapter...I didn't have to spend it Samantha Samantha money doing the conversion"

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    Product Description

    Enhance your Honda Acura's sound system with this antenna adapter that allows the connection of an aftermarket antenna to an OEM radio.
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    Top comment

    "Antenna adapter...I didn't have to spend it Samantha Samantha money doing the conversion"

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    Product Description

    Enhance your Honda Acura's sound system with this antenna adapter that allows the connection of an aftermarket antenna to an OEM radio.
    See all Antennas & Adapters
    See all Antennas & Adapters
  2. Metra - Antenna Adapter for Select 1987-2006 Infiniti/Nissan - Black - Front_Zoom
    Top comment

    "Works as expected. Antenna reception doesn’t work as good as the old head unit which intelligently switched between the two antennas....Metra - Antenna Cable Adapter - Black...Metra - Antenna Cable Adapter - BlackMetra - Antenna Cable Adapter - Black"

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    Product Description

    This antenna cable adapter (40-NI10) is used to adapt your vehicle’s original antenna cable to plug into an aftermarket radio with a male Motorola connector on one end and a Nissan-style antenna jack on the other.
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    Top comment

    "Works as expected. Antenna reception doesn’t work as good as the old head unit which intelligently switched between the two antennas....Metra - Antenna Cable Adapter - Black...Metra - Antenna Cable Adapter - BlackMetra - Antenna Cable Adapter - Black"

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    Product Description

    This antenna cable adapter (40-NI10) is used to adapt your vehicle’s original antenna cable to plug into an aftermarket radio with a male Motorola connector on one end and a Nissan-style antenna jack on the other.
    See all Antennas & Adapters
    See all Antennas & Adapters
  3. Metra - Amplified AM/FM Radio Antenna Adapter - Black - Front_Zoom
    Top comment

    "This Metra - Amplified AM/FM Radio Antenna Adapter - Black is awesome....Metra - Amplified Am/fm Radio Antenna Adapter works wonders"

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    Product Description

    Neatly adapt an aftermarket antenna to an OEM radio with this convenient AM/FM antenna adapter.
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    Top comment

    "This Metra - Amplified AM/FM Radio Antenna Adapter - Black is awesome....Metra - Amplified Am/fm Radio Antenna Adapter works wonders"

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    Product Description

    Neatly adapt an aftermarket antenna to an OEM radio with this convenient AM/FM antenna adapter.
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    See all Antennas & Adapters
  4. Metra - Antenna Adapter for Select 1999-2023 Chevrolet Nissan Subaru Acura Infiniti - Black - Front_Zoom
    Top comment

    "Metra - Antenna Adapter...Metra - Antenna Adapter for Select 1999-2023 Chevrolet Nissan Subaru Acura Infiniti - Black worked perfectly...Radio conversions always need extra pieces. You think they would have s stand connection.. "

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    Product Description

    This Metra 40-NI12 antenna adapter is constructed from copper, polypropylene and steel materials and enables you to securely adapt an aftermarket antenna to your compatible 2007 or later Nissan vehicle's OEM radio.
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    Top comment

    "Metra - Antenna Adapter...Metra - Antenna Adapter for Select 1999-2023 Chevrolet Nissan Subaru Acura Infiniti - Black worked perfectly...Radio conversions always need extra pieces. You think they would have s stand connection.. "

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    Product Description

    This Metra 40-NI12 antenna adapter is constructed from copper, polypropylene and steel materials and enables you to securely adapt an aftermarket antenna to your compatible 2007 or later Nissan vehicle's OEM radio.
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    See all Antennas & Adapters
  5. Metra - Antenna Adapter for Select 1997-2023 Ford Chevrolet Jeep Dodge GMC Volkswagen Kia Ram - Black - Front_Zoom
    Top comment

    "This Antenna Adapter for BMW Car Stereo conversion fits exactly to the OEM connector. ...Antenna adapter......Antenna adapter worked out great for my new kenwood radio."

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    Product Description

    METRA 40-EU10 Antenna Cable Adapter
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    Top comment

    "This Antenna Adapter for BMW Car Stereo conversion fits exactly to the OEM connector. ...Antenna adapter......Antenna adapter worked out great for my new kenwood radio."

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    Product Description

    METRA 40-EU10 Antenna Cable Adapter
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    See all Antennas & Adapters
  6. Metra - Antenna Adapter for Select 1985-2013 Toyota Chevrolet GMC Hyundai Kia Buick Cadillac - Black - Front_Zoom
    Top comment

    "Had our radio installed with all of the conversions and adapters and it all works as designed....Geek Sqauad used the Antenna when they installed my stereo in my conversion van. "

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    Product Description

    This adapter allows you to adapt an aftermarket antenna to your OEM radio in select 1988 - 2006 GM vehicles.
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    Top comment

    "Had our radio installed with all of the conversions and adapters and it all works as designed....Geek Sqauad used the Antenna when they installed my stereo in my conversion van. "

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    Product Description

    This adapter allows you to adapt an aftermarket antenna to your OEM radio in select 1988 - 2006 GM vehicles.
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    See all Antennas & Adapters
  7. Metra - Antenna Adapter for Select 2018-2023 Nissan Vehicles - Multi - Angle_Zoom

    Product Description

    If you are replacing the radio in your vehicle, this Metra antenna cable adapter ensures that you can continue using your factory antenna. It is a simple yet necessary cable that adapts the vehicle’s original antenna cable to plug into an aftermarket radio, featuring a male Motorola connector with blue wire lead on one end and a Nissan-style antenna connector on the other.
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    Product Description

    If you are replacing the radio in your vehicle, this Metra antenna cable adapter ensures that you can continue using your factory antenna. It is a simple yet necessary cable that adapts the vehicle’s original antenna cable to plug into an aftermarket radio, featuring a male Motorola connector with blue wire lead on one end and a Nissan-style antenna connector on the other.
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    See all Antennas & Adapters
  8. Metra - Antenna Adapter - Black - Front_Zoom

    Model: BY-EU10
    SKU: 6503082
    Top comment

    "Needed this for the antenna and it worked perfect. Easy plug and play....Antenna extender for aftermarket radio...Great antenna extender for aftermarket stereo. Used on Jeep Wrangler easy to install clear crisp sound coming from antenna channels. "

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    Product Description

    Play your favorite stations with this Metra BY-EU10 antenna adapter cable for 2010-up European vehicles. Featuring a male Motorola connector and a male European-style Fakra connector on opposite ends, this cable lets you make coaxial connections between your antenna and the radio receiver. This Metra antenna adapter cable easily plugs into an aftermarket radio for quick installation.
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    Top comment

    "Needed this for the antenna and it worked perfect. Easy plug and play....Antenna extender for aftermarket radio...Great antenna extender for aftermarket stereo. Used on Jeep Wrangler easy to install clear crisp sound coming from antenna channels. "

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    Product Description

    Play your favorite stations with this Metra BY-EU10 antenna adapter cable for 2010-up European vehicles. Featuring a male Motorola connector and a male European-style Fakra connector on opposite ends, this cable lets you make coaxial connections between your antenna and the radio receiver. This Metra antenna adapter cable easily plugs into an aftermarket radio for quick installation.
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    See all Antennas & Adapters
  9. Metra - Antenna Adapter Reverse for Select 1999-2023 Chevrolet Nissan Subaru Acura Infiniti - Black - Front_Zoom
    Top comment

    "Antenna Adapter...It seems to be a good quality antenna. No complaints."

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    Product Description

    Easily adapt an aftermarket antenna to your compatible 2007 or later Infiniti or Nissan vehicle's OEM radio with this Metra 40-NI22 antenna adapter, which is made from copper, polypropylene and steel materials for a secure connection.
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    Top comment

    "Antenna Adapter...It seems to be a good quality antenna. No complaints."

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    Product Description

    Easily adapt an aftermarket antenna to your compatible 2007 or later Infiniti or Nissan vehicle's OEM radio with this Metra 40-NI22 antenna adapter, which is made from copper, polypropylene and steel materials for a secure connection.
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    See all Antennas & Adapters
  10. Metra - Antenna Adapter for Select 2016-2021 Honda Civic - Black - Front_Zoom
    Top comment

    "Antenna adapter for Honda...The adapter was needed for the installation of new JVC radio/cd system installed in my 2017 CRV. ...Antenna adapter"

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    Product Description

    Maintain AM/FM radio capability when installing an aftermarket stereo system with this Metra antenna adapter kit. Its sturdy, high-quality construction ensures durability, and it's fast and easy to install, so you can enjoy your favorite stations right away. This Metra antenna adapter kit fits Honda vehicles made in 2016 or after.
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    Top comment

    "Antenna adapter for Honda...The adapter was needed for the installation of new JVC radio/cd system installed in my 2017 CRV. ...Antenna adapter"

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    Product Description

    Maintain AM/FM radio capability when installing an aftermarket stereo system with this Metra antenna adapter kit. Its sturdy, high-quality construction ensures durability, and it's fast and easy to install, so you can enjoy your favorite stations right away. This Metra antenna adapter kit fits Honda vehicles made in 2016 or after.
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    See all Antennas & Adapters
  11. Metra - Antenna Adapter for Select 2009-2023 Hyundai Elantra Sonata Santa Fe Sorento Soul Sportage - Black - Front_Zoom
    Top comment

    "Antenna adapter connected new radio to the existing factory antenna. ...Antenna adapter fit fine...Needed an antenna adapter for one of my vehicles in which the Geek Squad installed. "

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    Product Description

    Install a new antenna in your 2007 or later Kia with this adapter that features a durable design.
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    Top comment

    "Antenna adapter connected new radio to the existing factory antenna. ...Antenna adapter fit fine...Needed an antenna adapter for one of my vehicles in which the Geek Squad installed. "

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    Product Description

    Install a new antenna in your 2007 or later Kia with this adapter that features a durable design.
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    See all Antennas & Adapters
  12. Metra - Antenna Adapter Reverse for Select 2001-2023 Ford Chevrolet Jeep Dodge GMC Mazda Chrysler - Black - Front_Zoom
    Top comment

    "I used this adapter to hook my car antenna to my new in dash stereo system It worked great!!! ...Chrysler Vehicle Antenna Adapter Cable 2002"

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    Product Description

    Get good radio reception from this Metra universal antenna adapter. It's easy to install, and the copper wire inside receives radio signals clearly and transfers them straight to the stereo system and speakers in your vehicle. This Metra universal antenna adapter works with a wide range of Chrysler models from 2002 and up for convenience.
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    Top comment

    "I used this adapter to hook my car antenna to my new in dash stereo system It worked great!!! ...Chrysler Vehicle Antenna Adapter Cable 2002"

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    Product Description

    Get good radio reception from this Metra universal antenna adapter. It's easy to install, and the copper wire inside receives radio signals clearly and transfers them straight to the stereo system and speakers in your vehicle. This Metra universal antenna adapter works with a wide range of Chrysler models from 2002 and up for convenience.
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    See all Antennas & Adapters
  13. Metra - Antenna Adapter for Select 1985-2013 Chevrolet GMC Hyundai Kia Buick Cadillac Pontiac - Black - Front_Zoom
    Top comment

    "Great Adapter...This is a very nice antenna adapter. Very well made and works perfect....Antenna adapter...Works great. This adapter is needed when using XM onyx radio in certain GM vehicles"

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    Product Description

    This Metra 40-GM21 adapter lets you connect an aftermarket antenna to your compatible 1998-2008 GM vehicle's factory-installed radio. Copper, polypropylene and steel materials and copper shielding provide durability.
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    Top comment

    "Great Adapter...This is a very nice antenna adapter. Very well made and works perfect....Antenna adapter...Works great. This adapter is needed when using XM onyx radio in certain GM vehicles"

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    Product Description

    This Metra 40-GM21 adapter lets you connect an aftermarket antenna to your compatible 1998-2008 GM vehicle's factory-installed radio. Copper, polypropylene and steel materials and copper shielding provide durability.
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    See all Antennas & Adapters
  14. Metra - Antenna Adapter for Select 2004-2023 Volkswagen Mercedes-Benz Audi Jaguar - Black - Front_Zoom
    Top comment

    "EXCELLENT DUAL FAKRA ANTENNA ADAPTER....Metra 40-EU56 Dual FAKRA Antenna Adapter is an excellent adapter that integrates an amplified antenna into a vehicle's OEM sound system....Antenna Adapter"

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    Product Description

    Integrate an amplified antenna into your vehicle's OEM sound system with this Metra 40-EU56 dual FAKRA adapter that is designed for a variety of European Volvo models for a customized connection.
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    Top comment

    "EXCELLENT DUAL FAKRA ANTENNA ADAPTER....Metra 40-EU56 Dual FAKRA Antenna Adapter is an excellent adapter that integrates an amplified antenna into a vehicle's OEM sound system....Antenna Adapter"

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    Product Description

    Integrate an amplified antenna into your vehicle's OEM sound system with this Metra 40-EU56 dual FAKRA adapter that is designed for a variety of European Volvo models for a customized connection.
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    See all Antennas & Adapters
  15. Metra - Antenna Adapter for Select 1993-2010 Dodge Volkswagen BMW - Black - Front_Zoom
    Top comment

    "Great adapter...Great adapter for Jetta antenna to standard antenna input does what it's supposed to...Great adapter for My Audi...This is a must for powered antennas."

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    Product Description

    Connect an aftermarket antenna to your vehicle with this adapter that is compatible with most 1997-2002 Audi and Volkswagen models.
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    Top comment

    "Great adapter...Great adapter for Jetta antenna to standard antenna input does what it's supposed to...Great adapter for My Audi...This is a must for powered antennas."

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    Product Description

    Connect an aftermarket antenna to your vehicle with this adapter that is compatible with most 1997-2002 Audi and Volkswagen models.
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    See all Antennas & Adapters
  16. Metra - Antenna Adapter for Select 1973-2023 Ford Dodge Volkswagen Ram Mercedes-Benz Chrysler - Black - Front_Zoom
    Top comment

    "antenna cable...What can I say , it's an antenna adapter, It works!...JVC Antenna Cable Adapter...Put Head Unit in my Dash. This Antenna Cable Adapter is just right"

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    Product Description

    METRA Antenna Cable Adapter
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    Top comment

    "antenna cable...What can I say , it's an antenna adapter, It works!...JVC Antenna Cable Adapter...Put Head Unit in my Dash. This Antenna Cable Adapter is just right"

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    Product Description

    METRA Antenna Cable Adapter
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    See all Antennas & Adapters
  17. Metra - Antenna Adapter for Select 2007-2023 Toyota Subaru Lexus - Black - Front_Zoom
    Top comment

    "Great antenna adapter...This is a great adapter for my antenna. Works flawlessly....antenna...Best antenna adapter on the market. Perfect for in-car upgrade."

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    Product Description

    Connect your vehicle's radio to an aftermarket antenna with ease using this Metra 40-LX11 adapter that is compatible with most 2009 and later Lexus models.
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    Top comment

    "Great antenna adapter...This is a great adapter for my antenna. Works flawlessly....antenna...Best antenna adapter on the market. Perfect for in-car upgrade."

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    Product Description

    Connect your vehicle's radio to an aftermarket antenna with ease using this Metra 40-LX11 adapter that is compatible with most 2009 and later Lexus models.
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    See all Antennas & Adapters
  18. Maestro - Antenna Adapter for Select Toyota Vehicles - Black - Front_Zoom

    Product Description

    Link your 2012-up Toyota factory satellite antenna to an aftermarket satellite radio tuner with this Maestro satellite antenna adapter. Corrosion-resistant materials and a dust cover ensure reliable performance and durability for many miles. This Maestro satellite antenna adapter has a standard SMB connector for compatibility with many aftermarket satellite stereo tuners.
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    Product Description

    Link your 2012-up Toyota factory satellite antenna to an aftermarket satellite radio tuner with this Maestro satellite antenna adapter. Corrosion-resistant materials and a dust cover ensure reliable performance and durability for many miles. This Maestro satellite antenna adapter has a standard SMB connector for compatibility with many aftermarket satellite stereo tuners.
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    See all Antennas & Adapters
  19. Metra - Antenna Adapter for Select 2005-2013 Ford Chevrolet - Black - Front_Zoom

    Product Description

    Extend the factory satellite antenna connector in your car with this Metra OE satellite radio antenna adapter. The 17-foot cable length enables flexible pairing with other connectors, while the black finish blends with most surfaces. This Metra OE satellite radio antenna adapter boasts compatibility with most aftermarket connector styles for versatility.
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    Product Description

    Extend the factory satellite antenna connector in your car with this Metra OE satellite radio antenna adapter. The 17-foot cable length enables flexible pairing with other connectors, while the black finish blends with most surfaces. This Metra OE satellite radio antenna adapter boasts compatibility with most aftermarket connector styles for versatility.
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    See all Antennas & Adapters
  20. Metra - Antenna Adapter for Select Vehicles - Black - Front_Standard
    Top comment

    "Needed adapter for older vehicle...ant, adapter"

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    Product Description

    Update your vehicle's sound system with this antenna adapter that features a standard male antenna connector for easy installation.
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    Top comment

    "Needed adapter for older vehicle...ant, adapter"

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    Product Description

    Update your vehicle's sound system with this antenna adapter that features a standard male antenna connector for easy installation.
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    See all Antennas & Adapters
  21. Metra - Antenna Adapter for Select 2003-2004 Infiniti - Black - Front_Zoom

    Product Description

    Retain your 1987-2006 Nissan vehicle's diversity functions with an aftermarket radio with the help of this Metra 40-NI30 antenna adapter, which adapts your vehicle's factory antenna cable to FM modulators with CD.
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    Product Description

    Retain your 1987-2006 Nissan vehicle's diversity functions with an aftermarket radio with the help of this Metra 40-NI30 antenna adapter, which adapts your vehicle's factory antenna cable to FM modulators with CD.
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    See all Antennas & Adapters
  22. Metra - Antenna Adapter - Black - Front_Zoom

    Model: BY-ADGM
    SKU: 6499051
    Top comment

    "If you vehicle uses this antenna can recommend....Gm radio antenna adapter"

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    Product Description

    Listen to your favorite AM or FM radio stations on an aftermarket radio with this Metra factory BY-ADGM antenna adapter. The high-quality design plugs into your OEM antenna harness for a seamless connection with the aftermarket radio harness. This Metra factory antenna adapter features a universal construction for smooth installation on most 1983-2013 GM vehicles.
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    Top comment

    "If you vehicle uses this antenna can recommend....Gm radio antenna adapter"

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    Product Description

    Listen to your favorite AM or FM radio stations on an aftermarket radio with this Metra factory BY-ADGM antenna adapter. The high-quality design plugs into your OEM antenna harness for a seamless connection with the aftermarket radio harness. This Metra factory antenna adapter features a universal construction for smooth installation on most 1983-2013 GM vehicles.
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    See all Antennas & Adapters
  23. Metra - Antenna Adapter for Most 2009 and Later Hyundai and Kia Vehicles - Black - Front_Zoom
    Top comment

    "Antenna adapter"

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    Product Description

    Adapt an aftermarket antenna to the OEM radio in your 2009 or later Hyundai or Kia vehicle with this Metra 40-KI30 antenna adapter. Copper, polypropylene and steel materials offer rugged durability.
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    Top comment

    "Antenna adapter"

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    Product Description

    Adapt an aftermarket antenna to the OEM radio in your 2009 or later Hyundai or Kia vehicle with this Metra 40-KI30 antenna adapter. Copper, polypropylene and steel materials offer rugged durability.
    See all Antennas & Adapters
    See all Antennas & Adapters
  24. Metra - Antenna Adapter for Select 2005-2006 Audi A4 - Black - Front_Zoom

    Product Description

    Adapt an aftermarket antenna to an OEM radio in your compatible Audi or Volkswagen vehicle with this antenna adapter that is compatible with 1997 - 2002 models.
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    Product Description

    Adapt an aftermarket antenna to an OEM radio in your compatible Audi or Volkswagen vehicle with this antenna adapter that is compatible with 1997 - 2002 models.
    See all Antennas & Adapters
    See all Antennas & Adapters
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