For the newer (3GP) MMI control panels, the communication always takes place serially.
However, the baud rate of the serial transmission was increased from the classic 9600 baud to 19200 baud.
So if you connect an "old" control panel to a new 3GP unit, the key control does not work...
Sounds like 3G high look up MMI on Wikipedia it will tell you how dated your software is
https://en.m.wikipedia.org/wiki/Multi_Media_Interface
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Use imgur to upload the pics, its free . B5nut what 3G+ unit did you use in your a6, I've heard you can use either q7 or a8 is that tru?
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Thanks for the documentation b5Nut my issue ended up being fuses. My dumb fault. Either way, now that i have 3G installed, i just ordered an A8 module to go to 3G+ any other things i need to know? Cable for GSM antenna or anything of the sort?
So I attempted the retrofit yesterday and for some reason now NOTHING works. Instrument cluster doesn't light up. The can gateway can't be read and k1 and k2 have short to grond errors .
Before replacing the gateway for whatever reason the screen wouldn't light up either. Made sure there was...
Well I guess I'm not the only one interested in the 3g retrofit.
I have all the modules to include
Radio
Gateway
MMI
Speedo
Infotainment
CD Change
I stripped an old wiring harness from a 2010 A6 to get the Screen Harness and Quadlock
How did you connect the quadlock for the radio in the...
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