I have just recently purchased a pristine 2001 Audi S8.. My problem is I can not get the navigation system to work..The controls are located in the small center console...I press the NAV button and nothing happens..My display is supposed to be in the dash... Could the whole unit in the console be bad or could it also be the Navigation Unit in the trunk...Any help is appreciated

 

you should scan it to get fault codes.
there is a nav unit that you put a regional cd in by the CD changer unit in the trunk. that could be bad.
the other component is a control module. I don't know where it's located. in the trunk I think. look one up on ebay to see what it looks like.
I too have a 01 S8 with not working nav. I'm pretty sure my module is bad, but I don't know that the nav is worth fixing so I don't.
check fuses
good luck

 

The Nav unit is in the trunk but i have also noticed that in the small console where the controls are I can't seem to get that to work... I press the NAV button and nothing happens..it seems like that unit is not working... my display shows on the dash but i am not getting any kind of response.. i am just wondering if that unit might be bad