Audio Systems: 2001 Range Rover Harmon Karden Radio, harmon karden, amp fuses

Question
Hi Ernesto:  Vehicle is 2001 Range Rover 4.8 HRS. Audio system is HK premium.  Question:  Turned on system...no sound.  Checked amp fuses...all OK.  The only item I can find is that the "Surround Sound/Driver/Standard" seletion does not show up now when the audio ajustment button is selected.  Can't find anything in LR books for a cure....Any solution?  Thanks Steve

Answer
unplug the battery over night and see if you have the code some radios need that to turn on
when you power the radio back  it looks for the amplifier and cd changer this will go to factory settings if the problem is still there the radio will need to be service

good luck