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Audi MMI 2G aux audio source activation and wiring

Audi MMI 2G Aux In activation

Audi MMI 2G aux audio source can be activated and after doing some wiring you can enjoy sound on your car audio system playing from your iPhone, iPod, notebook, mp3 player or any other source. It’s a cheap alternative for AMI (Audi Music Interface).

Tools

  • Diagnostic interface like OBDeleven, VCDS, VAG-COM, VAS or any other that’s capable of performing coding and adaptation procedures.
  • audio wire with suitable connector (3,5mm jack is most popular)
  • 4 x “Repair Wire 0.5mm” part
  • cutters
  • ratchet crimping tool

Warning!

Performing this procedure may cause permanent damage to your car.
Do this at your own risk!
We are not responsible for any loss or damage.

Preparation

  • You car need to have MMI 2G system. Check your Multi Media Interface version.
    Check this article: Audi navigation systems – MMI RNS BNS RMC differences.
  • Your sound system version have to be standard. This procedure will not work on Bose or Bang&Olufsen sound systems.
  • Your Audi MMI 2G head unit must be equipped with green FBAS connector. If your car is not equipped with rear view camera or TV Tuner, you probably don’t have aux-ready head unit.
  • Make sure that your Audi Multi Media Interface 2G software version is up to date. In some older versions you won’t have access to hidden green menu or it will have less options then described. Read article MMI 2G software update to version 5570.
  • Hidden menu must be enabled. Check this article: Enable MMI hidden green menu (2G, 3G, 3G+).
  • First connect diagnostic interface to the OBD2 port, then turn the ignition on.

Audi MMI 2G aux wiring for standard audio amplifier

  1. Locate your audio amplifier. It’s usually hidden in the trunk or under the floor, on the left side.
  2. Find 32-pin conncetor and disconnect it from the amplifier. It should be labeled as T32h.
  3. Locate pins no. 24, 26, 29, 31 on the connector. They should be empty. You have to wire those pins for left and right audio signals.
Audi DSP T32h connector
Audi DSP T32h connector

Audi MMI 2G aux coding for standard audio amplifier

  1. Connect with module 47 – Sound System.
  2. Choose procedure 07 – Coding.
  3. Read original coding (e.g. 0000023). Write down this number.
  4. Add 3 to second to last digit of original coding (e.g. 0000053).
  5. Enter and save new coding.
  6. Exit.

Audi MMI 2G aux activation in hidden green menu

  1. Turn key into II position and wait for the MMI 2G system to start. You can also use keyless buttons.
  2. Press and hold buttons SETUP and CAR.
  3. After couple of seconds hidden green menu will appear. You can now release the buttons.
  4. Navigate to DIAG SETTING → APK 0x01, 0x0B, 0x0C.
  5. Scroll, find and enable Stereo Aux In on the list.
  6. Scroll down to Accept Changes and confirm.
  7. Press RETURN button multiple times to exit hidden menu.
  8. Press MEDIA or CD/TV button, then press top-right soft button labeled as Source and check for AUX on the sources list.
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55 thoughts on “Audi MMI 2G aux audio source activation and wiring”

  • Pingback: Aux IN im MMI Seite 3 : Ja das Signal wird in Stereo ausgegeben > Hier ein passender K...

  • can you help me pls how can i put aux on my audi a8L 2006 model.
    i have bosse system and dont have any place to put aux cablle can you help me for this??

    thnx

    • Please notice that this procedure most likely will not work for Bose or B&O sound systems!
      If you’re looking for a good place for your AUX port, try under the armrest or in the glovebox.

  • Pingback: Sistemul Audio - Video - Navi - Telefon si MMI la A4 B8 - Inlocuire MMI - diverse probleme si rezolvari - Page 66

  • Hello i have a problem. I do it all settings. But i have in the source option still CD but no Aux. In the hidden menu is the Aux actived. Please help me.

    • Can you confirm that you have both:
      -MMI 2G with latest software version
      -MMI 2g head unit with FBAS connector (rear view camera capable)

  • Question, do I have to do both things?

    Audi MMI 2G aux coding for standard audio amplifier
    Audi MMI 2G aux activation in hidden green menu

    Or one of them? (I can access the hidden green screen menu)

  • Hi Mr fix, what’s the easiest way for me to install aux? I have a a6 4f 2008, with mmi 2g high, I got a 6cd changer in the glove, no rear view camera, is it still to do something with the amplifier in the trunk? Or with a plug and play cable in the cd changer? I got the aux from the hidden menu, so that’s available

  • According to @mr-fix.info on last replay to @Kenneth:
    – If I understand true, can I also use conector same connector T32h like in trunk?
    – I have CD changer, but no rear camera and no TV

    Thanks, BR

    • start with activating the AUX source in MMI and rebooting it. If the AUX option is visible as one of the sources, then your MMI module is AUX ready.

  • I have been able to enable the AUX in hidden menu and shows on the media source as shown above. However, I have tried to enable in the Amplifier module-47 but it will not accept.
    code number is 030001 but will not accept 030031 as you indicate and Aux does not work.

    Any advice please.

    Thanks

    • Hi Dave.
      I have the same problem as you. Did you find a solution? Any help would be appreciated.
      Regards, Greg

    • I was never able to find an answer to this. It would be good to know what Amplifiers this worked on. Has anyone got a list of ones this worked on?

  • pins no. 24, 26, 29, 31 which pin is + and -?

    I activate AUX in green menu and added 3 in module 47.
    In VCDS that option is in the roll list and is named Analog AUX.

    So I can chose AUX in my MMI 2g+, connected left+ to pin 26 and right + to 24 and L and R – to pin 29 and 31, wired together.

    And NO sound.

    Whats wrong?

  • Hi, thank you so much for your tips. Is there a way to do the same thing for mmi 2g high with b&o amps ?
    I wonder if there is another way than investing on a AMI retrofit kit…

    • At the moment no information if it’s possible.
      You can also check solutions like dension gateway 500.

  • I can’t access the hidden menu, do I need to use VAG COM first ?
    Audi MMI 2G aux coding for standard audio amplifier

    Connect with module 47 – Sound System.
    Choose procedure 07 – Coding.
    Read original coding (e.g. 0000023). Write down this number.
    Add 3 to second to last digit of original coding (e.g. 0000053).
    Enter and save new coding.
    Exit.

    I have version 0260 and HW70.
    Only available sources are CD and MP3 (SD cards)
    2006 A3

    Thanks

  • Hi
    Any updates as to how this can be done for an Audi Q7 2007 model with the BOSE system?

    Thanks

  • Hi.

    I have the same problem as Dave, whose question you didnt respond to, except my stored value is 020001:
    I have been able to enable the AUX in hidden menu and shows on the media source as shown above. However, I have tried to enable in the Amplifier module-47 but it will not accept.
    code number is 020001 but will not accept 020031 as you indicate and Aux does not work.

    Any advice please.

    Thanks

  • Mr. Fix,

    I hope you can fix it! I have 2006 Audi A8L 2G mmi. I installed an mmi 2g interface to my factory mmi control module. So I’m able to get video from my phone to my screen from my Mirabox but no audio. Do l need to enable the auxiliary in order for the audio to work?

    • To be honest I don’t know what kind of interface you installed, how it’s connected and how should it work. Sorry.

  • Can anyone help me on the auxiliary wiring from the amp? How do I add additional wires?

  • Hi, very great tips. My car is audi a6 c6 2006. MMI version 5150. I did coding, and enabled aux in green menu.
    I have some questions:
    1. In a trunk I have Bose amplifier which has big 32 pin connection. Tried to add wires to pins, but still no sound. Do this tutorial works for Bose amplifier?

    • Your sound system version have to be standard. This procedure will not work on Bose or Bang&Olufsen sound systems.

    • Mine is a Standard system and this process still doesn’t work! not sure what amplifiers it actually works with? Was not allowed or able to enter the coding to the amplifer module.

  • Can you tell me whether I can play Spotify or Amazon Music through the Audi A4 MMI (2011)
    So far the only way of doing it is through connecting to the lead in the glove box. I’d like to access it via Bluetooth.
    Also, is it possible to have the map load up straight away on the Sat Nav? Every time I get the address screen.

  • Hey, does anyone have tutorial with pics or video of how to wire the 32pin connection?

  • I have DSP 4F0 035 223 K (4F0 910 223 H) and it doesnt work, It accepted the code but i think its the wrong hardware ?
    Can someone tell me what hardware is compatible ? The aux in the hidden menu i have enable.

  • Hello, Mr fix. Could you please help me with my situation?
    I enabled hidden menu, but there is no “APK 0x01, 0x0B, 0x0C” in DIAL SETTING.
    Please help me how can I enable this ?

  • Hi Sir,

    I’m really struggling to get this working. I have an A5 / 2008 with MMI 2G, 6 CD charger and navigation in the trunk.

    The problem is I cannot activate the AUX from de VCDS. I am using 12.12.0 version, en when in Module 47/07-Coding the value is 010101, and It does not accept any other value.

    Also, in the hidden menu there is no Stereo AUX In option to enable.

    Any tips on that would be much appreciated.

    Thanks in advance.
    Gabriel

  • Good afternoon
    And sought information in my country, worse is practically zero.
    I have a AUDI A6 2009, has TV and reader for 6 CDs and I think it’s MMI 2G. Is there any way to put you back camera?
    can you help me .
    Thank you very much in advance

  • Hello, I did everything and I can choose AUX in the menu. I also wired the pins but I don’t have sound. What could be the problem?

  • Hi Mr. Fix
    I have a 2008 Audi A8L 4E (D3) , with MMI 2G , TV, CD changer, rear view cam, AUX , ext AV1 – 2 , I have just bought a genuine Audi MD player and MOST (fiber) cable, MD shows up in VCDS as medieplayer2 and CD changer still works – so MOST is working fine. however MD changer does not show up in MMI sources, so I can’t select it.

    How can I activate/enable it so that I can select it as I can with the other sources ?

    Best regards
    Frank

  • Hi,
    I’m looking for bluetooth /aux adapter for audi a6 2007 mmi basic+ monochromatic, cd changer and satnav,
    Do you have any suggestions?

    Thank you

  • Same problem for me in module 47. MMI 2g, latest software, all the other steps seem ok (although no sign of Aux option in menu) but changing current code from 000002 to 000032 isn’t accepted. Did anyone ever figure this out?

  • Hi mr-fix it
    I have an Audi A8L (2008) with MMI 2G updated to version 5570 , I have installed an original Audi MD player ( it connects to MOST bus ) – and system see the mdplayer , but I can’t select it when i look in input device list – in that list I only have AUX1, 2 CD-changer , Radio and TV.
    What has to be done in order for this device to be visible in input selection list ?

    Hope You can help

    Best regards
    Frank

  • I activate AUX in green menu and added 3 in module 47.

    From 080000 to 080030

    So I can chose AUX in my MMI 2g+, connected left+ to pin 26 and right + to 24 and L and R – to pin 29 and 31, wired together.

    And NO sound.
    What is wrong? Do you have any idea?

  • Hi!
    I need some advice :)

    I have an Audi A4 B8 (2008) with MMI 2g high and want to listen music from my iPhone 8 via Aux input. I have enabled Stereo Aux in the hidden menu and connected a AMI to 3.5 jack cable. But unfortunately it doesn’t sexen to work, because i don’t hear any sound. On the display i see “Aux input is active”

    Can you help me? Am i doing something wrong? Or am i using the wrong cable?

    Thanks for the help!
    Kind regards,
    Alex

  • I’m stuck. What is the code number of the crimp terminal/pin for the 0.5 mm repair wire ? I bought the 000 979 131E which is too loose. The 000 979 225E is too big.
    Thanks

  • Hi, Could you make a tutorial on how to do the Wiring process? As i feel i will struggle with this, Or a post with pictures of how you did the wiring… this would help immensely.
    Thanks,
    Louis.

  • hello. has anyone finally made this trick to work? i enabled aux in green menu, wired the connector, but can code my audio system. after trying to code it says the code is rejected. i believe some audio amplifiers just cant be coded.

  • Hi,

    I tried this solution for my Q7 2007, MMI2G, “classic” amplifier.

    Never worksed.

    Even by following exactly that is indicated.
    The AUX is well selectbale from the MMI MENU.
    Coding done using VCP.
    Original coding is 080000.
    Change to 080030.
    The AUX Pins have been added to the amplifier.

    But does not work …. :'(

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