I have a 2010 S4 with 3G B&O, the MMI 3G goes to the 2012MY.
I purchased the Head unit and Control Panel off Ebay. Cost me around $600 for the parts to do the conversion.
Really like the newer interface, also brings Video over through MMI, Bluetooth Audio without an adapter, and Google Maps.
What you need:
Head Unit 8R1 035 746C (A and B also work, C is just newer, i believe it goes to F now also)
MMI-Controls: 8T0 919 611 C WFX or 8T0 919 611 L WFX (with Start/Stop button) or 8T0 919 611 B WFX (without Start/Stop button)
In other posts a Module 4G0 035 082(HD radio) is what is prefered. My car is a MY10 it had a Radio module 4F0 035 082A(non HD radio), it worked half the time, the volume would mute out and when you try and adjust the volume it would be "Currently Unavailable". Note: you need to have component protection removed for this module also.
There has been mention that if you have the Radio Module 4G0 035 082"G", it will not function correctly for Sirius.
I purchased a 4G0 035 082 without a suffix as that was reported to work well. Had a ton of speaker codes pop up with this unit and audio wouldn't work. Found that the coding had a subwoofer amp turned on (you can also see the subwoofer option in the audio settings). to fix this, change the coding to 0200070(1)0000000001. There was a (2) before. This will fix the speaker errors and play out audio to the amp.
You can Check with a Vagcom Addreess 56-Radio to verify what you have.
GSM Antenna cable. I ordered mine from: (people also just use a generic GSM antenna off ebay with the Fakra connector and mount it by the window instead of using the OEM antenna that is already in the car.)
rfsupplier.com > Custom RF Cable Assembly Wizard:
1 x Coax Type: RG174; Length: 500cm; Connector A: Fakra D Right Angle Jack; Connector B: Fakra D Straight Jack (F03DSJ-F03DRJ-174-500)
Removing the Head Unit, MMI controls, running the Antenna wire are well documented from Richib86
http://www.audizine.com/forum/showth...=1#post8091112
Some Tips and hints that you may run into:
Enable The hidden Menu Via Vagcom
[5F - Information Electr.]
[Adaptation - 10] -> Channel 6 -> Change 0 to 1
To get into the hidden Menu hold the Car and Menu buttons down for 5 seconds.
My unit came out of an A4 so the Splash screen said A4 when powered up.
To change this in the hidden menu:
car/carcodingvehicle
Select No of Screen:
15 --> A4
16 --> A4 Allroad
17 --> S4
18 --> RS4
The car it came out of also didnt have ADS.
To add the ADS menu, just do the portions of this Guide that are in the hidden menu.
http://audienthusiasts.com/VagCom_FL_ADS.html
While you are in the hidden Menu, its a good time to activate the following if you want:
Enable Battery meter
[Hidden menu] [car] [cardevextdevicelist] [Battery] Enable
[Hidden menu] [car] [carmenuoperation] [Battery] Set to 5
I had 2 Faults after the install, they dont affect the unit, but if you want to get rid of them:
03276 - Please Check Software Version Management
http://www.audienthusiasts.com/Appli..._SVMError.html
03157 - Functionality limited due to Communications Disruption
Is due to having an option in the MMI car selection screen that the car does not support, ie: interior lighting. You need to go into the hidden menu and clear out the ones not compatible.
You may get error 03175 and this post shows how to get rid of it
http://www.audizine.com/forum/showth...1#post10353818
You will get Component Protection when swapping the Head unit. To date the only way to get rid of it is to go to the dealer. I was able to figure out how to use a VCP cable to read and write the eeprom from the old to the new. It is partially outlined here: http://audienthusiasts.com/Infotainment_EEPROM.html
I may offer to help do this service but you will need to send me both units. This would save you from the dealer.
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