GPS Repairs - Audi A6/S6/allroad (4F) C6 - failure radio module MMI 3G

Failure of the Audi MMI 3G radio module.

The unit won't turn on and has completely failed. The logo appears briefly on the display before everything goes dark again. The entire MMI system has failed.
The sound cuts out while driving, comes back, or stays off completely. A hissing, scratching, crackling, and/or popping sound can be heard from the speakers, or they fail completely.
Short circuit in the unit; the fuse keeps blowing.
Although the antenna is working properly, radio reception does not work.