B 9004 Problems...

[CharlieFarlie]

The B 9004 HiFi come sat nav unit in my T 180 has developed a fault....

It says it can't read the data off the disc and to check disc...

So I took it out and replaced it with another that I know us fine and it does just the same ..

Disconnected the Battery for a few minutes but still no change plus it's now making a funny clicking noise but this goes away after a few seconds ...

Are these units repairable. ?? Or is it knackered. ...

[CharlieFarlie]

Jumped in the car this morning and the !Removed! thing was working ? Well until I turned it off then nothing again .....................