radio not working or navigation
 

I have a 05 audi a6 3.2 quattro my navigation and radio dosnt work the lcd dosnt turn on when I turn the car on. Either the controls dont lite up. But the dvd player works has power. Only the lcd and controls no power. Does anyone know what it can be and if ot be a fuse were its located I cheacked a lot of fuses and they were good maybe its hiden somewhere I dunno.

I had to pull and reset my fuse for the telephone/radio. Radio did not work but the light stayed on after the ignition was turned off... weird.