FORD RDS 7000 CAN I FIX OR REPLACE DISPLAY?

I don't know the answer, my own display has ceased showing anything but the back light although the radio, cd and tape and controls work fine. Problem is I cannot see the LCD text so if I ever loose power to the unit I will not be able to recode it as I cannot see the numbers that have been selected. Have you had any help with this?
IAN IN ECCLES

Ian Edge
November 2009