Cars Covered

A3/S3 2006-2013
A4/S4/RS4 1998-2008 also 2009 Convertible
A6/S6/RS6 1998-2004 Also 2005 Allroad
A8/S8 1998-2002
TT/TTS/TTRS 1998-2015

If you car is not listed look for it in the menu on the top of the page.

Basic Information

-Bluetooth audio is All audio except calls. Yes navigation and audio books are included.
-Even if your radio has a CD changer built in your radio also has a connection on the back for a second CD changer.  CD Changer port interfaces below trick the radio into thinking that there is a CD changer attached.  The radio opens the audio lines and lets you play CD quality music through your radio.
-The CD changer in the radio will always still work. The CD changer or iPod dock in the glove box will never work.
-If you listen to satellite radio and choose a device that does not connect in the glove box you will need a sat pass to keep the satelite radio audio. See the sat pass section below.

Now that you know the basics its time to find out what devices are compatible with your car.

Audi A3 2006 with non navigation radio Symphony II and Concert
-AC2 applications connect behind the radio and DO display song information.
-AU2 applications connect behind the radio and DO NOT display song information.
-PHAETON applications connect in the glove box. We did not list phaeton aplications here so not to confuse everyone else. https://enfigcarstereo.com/IPOD_VW_PHAETON_04.html
Audi A3 2006 with RNS-E Navigation
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information.
-AUT applications replace the CD changer or iPod dock in the glove box. They are basically the AI2 aplictations with a glove box connection.
Audi A3 2007 with non navigation radio Symphony II and Concert
-AC2 applications connect behind the radio and DO display song information.
-AU2 applications connect behind the radio and DO NOT display song information
Audi A3 2007 with RNS-E Navigation
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information.
-AUT applications replace the CD changer or iPod dock in the glove box. They are basically the AI2 aplictations with a glove box connection.
Audi A3 2008-2013
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information.
-AUT applications replace the CD changer or iPod dock in the glove box. They are basically the AI2 aplictations with a glove box connection.
Audi A4 1998-2001
-AU2 applications connect behind the radio. Parts that include AC2 are not compatible.
Audi A4 2002-2003
-AC2 applications connect behind the radio and DO display song information.
-AU2 applications connect behind the radio and DO NOT display song information
Audi A4 2004-2006 with non navigation radio Symphony II and Concert
-AC2 applications connect behind the radio and DO display song information.
-AU2 applications connect behind the radio and DO NOT display song information
Audi A4 2004-2006 with RNS-E Navigation
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information.
-AUT applications replace the CD changer or iPod dock in the glove box. They are basically the AI2 aplictations with a glove box connection..
Audi A4 2007-2008 (+ 09 convertible) with non navigation radio Symphony II and Concert
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information.
-AUT applications replace the CD changer or iPod dock in the glove box. They are basically the AI2 aplictations with a glove box connection.
Audi A4 2007-2008 (+ 09 convertible) with RNS-E Navigation
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information.
-AUT applications replace the CD changer or iPod dock in the glove box. They are basically the AI2 aplictations with a glove box connection.
Audi A6/S6/RS6 1998-2001
-AU2 applications connect behind the radio. Parts that include AC2 are not compatible.
Audi A6/S6/RS6 2002-2004 with 6 CD radio
-AC2 applications connect behind the radio and DO display song information.
-AU2 applications connect behind the radio and DO NOT display song information
Audi A6/S6/RS6 2002-2004with RNS-E Navigation
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information.
-There is no AUT application for this car since the CD changer is in the trunk.
Audi A8/S8 1998-2001
-AU2 applications connect behind the radio. Parts that include AC2 are not compatible.
Audi A8/S8 2002 with 6 CD and casette radio
-AC2 applications connect behind the radio and DO display song information.
-AU2 applications connect behind the radio and DO NOT display song information
Audi TT 1998-2001
-AU2 applications connect behind the radio. Parts that include AC2 are not compatible.
Audi TT 2002-2006
-AC2 applications connect behind the radio and DO display song information.
-AU2 applications connect behind the radio and DO NOT display song informationn.
Audi TT/TTS 2007-2010
-AI2 AC1 applications connect behind the radio. AUT applications replace the CD changer or iPod dock in the glove box. This car has the -AUT connection even if the car did not have an iPod dock or CD changer.
Audi TT/TTS/TTRS 2011-2015
-AC1 applications connect behind the radio and DO display song information.
-AI2 applications connect behind the radio and DO NOT display song information. At some point they changed the connection behind the radio so only AC1 and not AI2 connections fit. When they did this they also got rid of the CD glove box port so AUT applications do not work either. We could make a custom cable to make the AI2 cables work but at that price point you are better off getting an AC1 application.
-AUT applications replace the CD changer or iPod dock in the glove box. They are basically the AI2 aplictations with a glove box connection.

The first 2 interfaces are for iPhone/iPod owners only

If you do not have an iPhone skip these.

IPDU-AUX
(AI2 AU2 AUT)

This is a female USB for your iPod/iPhone that provides charge and audio through a single USB connection. It also provides song up and down controls form the radio. It also has an aux port on the box and comes with the aux cable.

IPDUT-AUX
(AC1 AC2)

The next device provides a female USB for your iPhone/iPod. Song information in shown in the display in the speedometer. It also provides song up and down controls form the radio. And full browsing of music on your iPhone or Apple Music. This unit also has a 3.5mm aux input.

GWP1
(AC1 AC2)

Song and call inforamation on the cluster + Bluetooth phone calls and music + control from the radio and steering wheel controls.
This is the best device we offer for your car. Its has all the features of the others combined into one unit. Bluetooth audio will display on the instrument cluster with song up and down controls. Bluetooth calls will display on the instrument cluster like the factory unit. Song up and down controls from the radio and steering wheel controls also function. The USB port on the box is for music off memory sticks and will charge and play audio from an iPhone. Aux port can be added using the EXT1CP2 that we reccomend but not necessary when ordering with this part. We also offer a custom microphone that can be inserted into the factory location.

GBL3
(AI2 AU2)

Bluetooth phone calls and music + control from the radio and steering wheel controls.
If you are intersted in phone calls this unit will answer the phone when you press song up on the radio or steering wheel. Will also hang up when you press song down. Song up and down controls from the radio and steering wheel controls also function. The USB port on the box is for music off memory sticks and will not charge or play music off any other device. The 9 pin port can be used to conenct a (sold seperatly) aux or iPhone cable. We also offer a custom microphone that can be inserted into the factory location.

BTA-AUX
(AI2 AU2 AUT)

Next is what we call the wireless AUX. It's wireless bluetooth for music. It is a CD quality wireless bluetooth audio dongle on the end of a 30Pin iPod cable. Only for music not calls and no control from the radio. It still has the 3.5mm aux port in the box.

GW17
(AC1 AC2)

This unit is just like the IPDUT-AUX unit above but instead of a female USB is has a old 30-Pin iPod cable. This is the perfect unit for people that want to keep an old iPod/iPhone in the glove box since it provides full browsing of your iPod through the steering wheel controls.

GW1L
(AI2 AU2 AUT)

This is the same device as the IPDU-AUX unit above with control from the radio but instead of a female USB it has an old 30 Pin iPod cable for people with old iPods or people that own the Apple lightning to 30 pin converter.

AUX
(AI2 AU2 AUT)

The first and most basic unit availaible for your Audi is the pain AUX. It has an female 3.5mm port on the side of the box for an 3.5mm audio cable (not included). The 3.5mm aux port is just for audio. It does not control or charge anything. The 9 pin port is for add ons. While the add ons can be sold seperatly at a later time it is cheaper to purchase them as a package from the beginning.

Radio removal keys

These Keys can be used to remove your radio. They come in sets of 2 and 4. Make sure you order the correct quantity.

Keeping Sirius XM radio

These interfaces use the CD changer port for audio. Unfortunatly the CD changer audio passes through the satellite radio tuner so if you choose an interface that connects behind the radio you must install a Sat pass to continue listening to satellite radio. If you do not listen to satellite radio you can skip this step. If you have the iPod/CD Changer connection in the glove box then you can use the Satpass3 but if your car does not have this connection then you must use the SatPass2 and run it to the satellite tuner in the trunk. If you choose an interrace that connects in the glove box the sat pass in built into the car.