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Add an Audio Aux Input to Factory Stereo

Adding additional functionality to your vehicle is always a good thing. Adding AUX capabilities can be a huge upgrade if you have an older vehicle and are limited just CDs and the stereo. Also many modern vehicle are also getting rid of the AUX input in favor of Bluetooth, but for audiophiles the sound quality is not the same. With these harnesses you can add an an AUX input to your existing car stereo.

Can't find a solution for your vehicle? Take a look at all of our aftermarket car stereos with an Auxiliary input.

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GROM Audio HYUU3 (GROM-USB3-HYU)

Android and iOS Smartphone Integration for Select 2007-2008 Hyundai Vehicles

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Android and iOS Smartphone Integration for Select 2007-2008 Hyundai Vehicles

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 2007-2008 Hyundai Vehicles
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

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$174.99

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Ships in 10-14 days

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 2007-2008 Hyundai Vehicles
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

HYUU3 small

Item added to your cart.

Price: $174.99

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Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
GROM Audio C-35USB

5 Ft 3.5mm Auxiliary Input Cable with 5 Volt USB Charging

$16.99

$19.99

Add to cart
Five Piece Installer's Panel Removal Tool Kit

Helps with removing dash and trim panels during car stereo installation.

$18.99

$11.99

Add to cart

GROM Audio MBUSDB3 Acura and Honda Bluetooth Streaming Kit (GROM-BT3-HON92)

Add Bluetooth Hands Free Calling and Music Streaming to Select 1991-2005 Acura and Honda Factory Radios

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Add Bluetooth Hands Free Calling and Music Streaming to Select 1991-2005 Acura and Honda Factory Radios

• Hands Free Bluetooth Car Kit
• Compatible With Select 1991-2005 Acura and Honda Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

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$174.99

Available

Ships in 10-14 days

• Hands Free Bluetooth Car Kit
• Compatible With Select 1991-2005 Acura and Honda Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

MBUSDB3 small

Item added to your cart.

Price: $174.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Crux AUX-BM4

Auxiliary Audio Input Interface and OBD Coder for 2003-2014 BMW Professional CCC Navigation Radio

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Auxiliary Audio Input Interface and OBD Coder for 2003-2014 BMW Professional CCC Navigation Radio

• AUX Audio Integration
• For Select 2004 - Up BMW Vehicles

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Was $237.95 Details
$146.95

In stock.

• AUX Audio Integration
• For Select 2004 - Up BMW Vehicles

AUX-BM4 small

Item added to your cart.

Price: $146.95

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

GROM Audio AUDB3 Audi Bluetooth Streaming Kit (GROM-BT3-AUD)

Add Bluetooth Hands Free Calling and Music Streaming to Select 1998-2009 Audi Factory Radios

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Add Bluetooth Hands Free Calling and Music Streaming to Select 1998-2009 Audi Factory Radios

• Hands Free Bluetooth Car Kit
• Compatible With Select 1998-2009 Audi Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

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• Hands Free Bluetooth Car Kit
• Compatible With Select 1998-2009 Audi Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

AUDB3 small

Item added to your cart.

Price: $179.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

GROM Audio VAGDU3 (GROM-USB3-VAGD)

Android and iOS Smartphone Integration for Select 2003-2011 Skoda and VW Vehicles with Double DIN Radio

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Android and iOS Smartphone Integration for Select 2003-2011 Skoda and VW Vehicles with Double DIN Radio

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible Select 2003-2011 Skoda and Volkswagen Vehicles
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

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$174.99

Available

Ships in 10-14 days

VAGDU3 small

Item added to your cart.

Price: $174.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
GROM Audio C-35USB

5 Ft 3.5mm Auxiliary Input Cable with 5 Volt USB Charging

$16.99

$19.99

Add to cart
Five Piece Installer's Panel Removal Tool Kit

Helps with removing dash and trim panels during car stereo installation.

$18.99

$11.99

Add to cart

GROM Audio RVRU3 (GROM-USB3-RVR)

Android and iOS Smartphone Integration for Select 1999-2005 Rover Vehicles

RVRU3 big
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Android and iOS Smartphone Integration for Select 1999-2005 Rover Vehicles

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 1999-2005 Rover Radios
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

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$174.99

Available

Ships in 10-14 days

RVRU3 small

Item added to your cart.

Price: $174.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
GROM Audio C-35USB

5 Ft 3.5mm Auxiliary Input Cable with 5 Volt USB Charging

$16.99

$19.99

Add to cart
Five Piece Installer's Panel Removal Tool Kit

Helps with removing dash and trim panels during car stereo installation.

$18.99

$11.99

Add to cart

GROM Audio NISCDCB Infiniti and Nissan Bluetooth Streaming Kit (GROM-BT3-NISCDC)

Add Bluetooth Hands Free Calling and Music Streaming to Select 1999-2010 Infiniti and Nissan Factory Radios

NISCDCB3 big
Go to item page Right Arrow Icon of Right Arrow

Add Bluetooth Hands Free Calling and Music Streaming to Select 1999-2010 Infiniti and Nissan Factory Radios

• Hands Free Bluetooth Car Kit
• Compatible With Select 1999-2010 Infiniti and Nissan Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

shipping truck icon Free shipping in USA. Provide zip for delivery date.

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found car based on your search Make sure it fits. Select a vehicle
$179.99

In stock

• Hands Free Bluetooth Car Kit
• Compatible With Select 1999-2010 Infiniti and Nissan Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

NISCDCB3 small

Item added to your cart.

Price: $179.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Crux AUX-MB1

Auxiliary Audio Input Interface For Mercedes-Benz 2011-2015 Comand NTG4.5 & Audio20 NTG4/NTG4.5 W/ 4-PIN LVDS

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Auxiliary Audio Input Interface For Mercedes-Benz 2011-2015 Comand NTG4.5 & Audio20 NTG4/NTG4.5 W/ 4-PIN LVDS

• For Mercedes-Benz 2011-2015 Comand NTG4.5 & Audio20 NTG4/NTG4.5 W/ 4-PIN LVDS

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Was $237.95 Details
$146.95

In stock.

• For Mercedes-Benz 2011-2015 Comand NTG4.5 & Audio20 NTG4/NTG4.5 W/ 4-PIN LVDS

AUX-MB1 small

Item added to your cart.

Price: $146.95

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

GROM Audio MITS08B3 Citroen, Mitsubishi and Peugeot Bluetooth Streaming Kit

Add Bluetooth Hands Free Calling and Music Streaming to Select 2007-2014 Citroen, Mitsubishi and Peugeot Factory Radios

MITS08B3 big
Go to item page Right Arrow Icon of Right Arrow

Add Bluetooth Hands Free Calling and Music Streaming to Select 2007-2014 Citroen, Mitsubishi and Peugeot Factory Radios

• Hands Free Bluetooth Car Kit
• Compatible With Select 2007-2014 Citroen, Mitsubishi and Peugeot Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

shipping truck icon Free shipping in USA. Provide zip for delivery date.

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found car based on your search Make sure it fits. Select a vehicle
$179.99

In stock.

• Hands Free Bluetooth Car Kit
• Compatible With Select 2007-2014 Citroen, Mitsubishi and Peugeot Vehicles
• Plugs Directly Into Vehicles Harness
• Streaming Audio from your Smartphone or Bluetooth Enabled Music Player

MITS08B3 small

Item added to your cart.

Price: $179.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

Axxess XIAH-HD3

2003-2007 Honda/Acura Specific Harness for XIA-I01

XIAH-HD3 big
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2003-2007 Honda/Acura Specific Harness for XIA-I01

• 2003-2007 Honda/Acura Specific Harness
• XM Satellite, iPod, and RCA Interface for select 2003-2007 Honda Vehicles

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Was $19.99 Details
$9.99

In stock

Only 1 Left!

• 2003-2007 Honda/Acura Specific Harness
• XM Satellite, iPod, and RCA Interface for select 2003-2007 Honda Vehicles

P.I.E. X3-TOY03

X3 Radio Installation Wiring Harness for 2003-2008 Select Toyota/Scion Vehicles

X3-TOY03 big
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X3 Radio Installation Wiring Harness for 2003-2008 Select Toyota/Scion Vehicles

• X3 Radio Installation Wiring Harness
• For Use With The X3 Input Selector
• For 2003-2008 Select Toyota Vehicles
• Radio Must Have Slave Unit
• Connects To 12-Pin Connector At Headunit

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found car based on your search Make sure it fits. Select a vehicle
Was $26.99 Details
$10.65

In stock

• X3 Radio Installation Wiring Harness
• For Use With The X3 Input Selector
• For 2003-2008 Select Toyota Vehicles
• Radio Must Have Slave Unit
• Connects To 12-Pin Connector At Headunit

GROM Audio AUDO4 (GROM-MST4-AUDO)

Android and iOS Smartphone Integration for Select 2004-2009 Audi Fiber Optic Radios

AUDO4 big
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Android and iOS Smartphone Integration for Select 2004-2009 Audi Fiber Optic Radios

• Android, Bluetooth, iPhone Integration Kit
• Compatible With Select 2004-2009 Audi Fiber Optic Radios
• USB, AUX, Bluetooth, Android, iPod Car Integration
• Android in-car play, charge and control
• Plugs Directly Into Vehicles Harness
• Two EXT ports for AUX-IN, Bluetooth and iPod
• Streaming Audio for Android 4.1 and Above

shipping truck icon Free shipping in USA. Provide zip for delivery date.

empty

found car based on your search Make sure it fits. Select a vehicle
$289.99

Available

Ships in 10-14 days

• Android, Bluetooth, iPhone Integration Kit
• Compatible With Select 2004-2009 Audi Fiber Optic Radios
• USB, AUX, Bluetooth, Android, iPod Car Integration
• Android in-car play, charge and control
• Plugs Directly Into Vehicles Harness
• Two EXT ports for AUX-IN, Bluetooth and iPod
• Streaming Audio for Android 4.1 and Above

AUDO4 small

Item added to your cart.

Price: $289.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
GROM Audio C-35USB

5 Ft 3.5mm Auxiliary Input Cable with 5 Volt USB Charging

$16.99

$19.99

Add to cart
Five Piece Installer's Panel Removal Tool Kit

Helps with removing dash and trim panels during car stereo installation.

$18.99

$11.99

Add to cart

GROM Audio MST4 BMWO4_BTD (GROM-MST4-BMWO4_BTD)

Android and iOS Smartphone Integration with Bluetooth for Select 2004-2010 BMW And Mini Fiber Optic Radios

Go to item page Right Arrow Icon of Right Arrow

Android and iOS Smartphone Integration with Bluetooth for Select 2004-2010 BMW And Mini Fiber Optic Radios

• Bluetooth, Android, iPhone Integration Kit
• Compatible With Select 2004-2010 BMW And Mini Fiber Optic Radios
• USB, AUX, Bluetooth, Android, iPod Car Integration
• Android in-car play, charge and control
• Plugs Directly Into Vehicles Harness
• Two EXT ports for AUX-IN, Bluetooth and iPod
• Streaming Audio for Android 4.1 and Above

empty

found car based on your search Make sure it fits. Select a vehicle
9
Was $354.98 Details
$353.99

• Bluetooth, Android, iPhone Integration Kit
• Compatible With Select 2004-2010 BMW And Mini Fiber Optic Radios
• USB, AUX, Bluetooth, Android, iPod Car Integration
• Android in-car play, charge and control
• Plugs Directly Into Vehicles Harness
• Two EXT ports for AUX-IN, Bluetooth and iPod
• Streaming Audio for Android 4.1 and Above

BTD,BMWO4 small

Item added to your cart.

Price: $353.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7

GROM Audio Rover Smartphone Music Streaming Kit (GROM-USB3-RVR_BTD)

Control Your Streaming Music from an Android or iOS Smartphone on Select 1999-2005 Rover Factory Radios

Go to item page Right Arrow Icon of Right Arrow

Control Your Streaming Music from an Android or iOS Smartphone on Select 1999-2005 Rover Factory Radios

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 1999-2005 Rover Radios
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

empty

found car based on your search Make sure it fits. Select a vehicle
9
Was $239.98 Details
$238.99

• Android, Bluetooth, iPhone, iPod Integration Kit
• Compatible With Select 1999-2005 Rover Radios
• Optional 3.5mm AUX and Bluetooth
• Streaming Audio for Android 4.1 and Above

BTD,RVRU3 small

Item added to your cart.

Price: $238.99

Allstate logo

Keep your product protected longer! Extend the warranty after the manufacturer warranty expires. 

  • Mechanical, electrical and product failure covered! 100% parts and labor covered. (Coverage starts after Mfr. warranty)
  • Easy online management! Zero hassle claim service, available 24/7
Essential add-ons
GROM Audio C-35USB

5 Ft 3.5mm Auxiliary Input Cable with 5 Volt USB Charging

$16.99

$19.99

Add to cart
Five Piece Installer's Panel Removal Tool Kit

Helps with removing dash and trim panels during car stereo installation.

$18.99

$11.99

Add to cart

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    FAQ Frequently asked questions in Add an Audio Aux Input to Factory Stereo


    Adding an Audio Aux Input to Factory Stereo Frequently Asked Questions (FAQ)
    An audio aux input is a port on your car stereo that allows you to connect an external audio source, such as a smartphone, MP3 player, or tablet. This allows you to play music from your device through your car stereo without having to use a cassette tape or CD.
    There are a few reasons why you might want to add an audio aux input to your factory stereo. First, it allows you to connect to a wider variety of audio sources. Second, it can improve the sound quality of your car stereo. Third, it can be a more convenient way to play music in your car.
    There are a few different ways to add an audio aux input to your factory stereo. One way is to install an aftermarket head unit with an aux input. Another way is to use an auxiliary input adapter. Auxiliary input adapters typically plug into the back of your car stereo and provide a 3.5mm audio jack for connecting external audio sources.
    The benefits of adding an audio aux input to your factory stereo include: The ability to connect to a wider variety of audio sources Improved sound quality More convenient way to play music in your car
    The drawbacks of adding an audio aux input to your factory stereo include: The cost of the auxiliary input adapter or aftermarket head unit The installation process may be difficult for some people The sound quality may not be as good as with a built-in aux input
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