Pronlems w/Audi a6 quattro mmi unit?

Having problems with audi a6 quatrro 2005. Original owner had split coffee on mmi unit and now the navagation display screen turns off after acouple of seconds then shuts off and wont turn back on. It also wont play the radio and cd player . so no music. Tge mmi unit only lights up also for acouple of seconds then... show more Having problems with audi a6 quatrro 2005. Original owner had split coffee on mmi unit and now the navagation display screen turns off after acouple of seconds then shuts off and wont turn back on. It also wont play the radio and cd player . so no music. Tge mmi unit only lights up also for acouple of seconds then shuts off. Need help on whe
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