Overhead computer

[lunatic]

Last summer we had strange problems with the computer. Sometimes after driving, the display was off. Press the big button and it came on OK and all the settings had been saved. It is no problem to press the button when it happens, but my concern is if it totally fails and will not come back on again, we have a big problem if on a trip.

Does anyone have any ideas or better still, where we can buy an identical replacement one in Germany? We are going to be in Germany in April.

How much would a replacement computer cost?

I would appreciate any help or ideas.

Thank you, Ian (Canada)