MMI Not Working — Mysteriously Goes Black?

[street sleeper]

The other day when I started my car, the MMI began booting up as normal. It got to the splash screen and then it went black. No picture. No sound.

I thought it was a bad fuse. So I used this website to find all the fuses associated with the MMI.

Passenger Side:
#3 MMI/Radio

Trunk:
#3 DSP amplifier, radio
#4 MMI
#5 Radio/navigation/cell phone prep
#6 Rearview camera

While the passenger side fuse was fine, I couldn’t locate any of the fuses listed for the trunk. Any help on how to fix this?

It's a 2008 Audi S5 with B&O system.

fusebox.jpg

[marott]

Same problem here, unfortunately after my car was stolen. I guess they cut nav wires, still can't figure out where is the fault.
From what I read this behavior often depends on fiber interruption.
Btw same here in the trunk I can't find fuses listed.

[newontheblock]

Check this website