hi all 
  
i was looking at a 2003 uk model 350z with the birds eye sat nav 
  
looks like the previous owner has used somthing dodgy to clean the screen which has left a unsightly stain/ splash mark in direct sunlight. looks like it is permanent and won't clean off  
  
the sat nav is otherwise workinfg fine 
  
is it possible to replace the screen cover? 
  
the 2003 dvd comes with the car - is there an alternative to paying a nissan dealer 400+ for an update? 
  
thanks   
  
oh and is the screen touch sensitive ?