How do I get power back on my sat/nav system?

I have an intergrated mercedes factory supplied sat/nav/stereo/phone system. It has recently lost all power. Any ideas how to get power back. I have checked the fuse but that isn't the problem
Henry, March 2009


done
disconnected the battery 4 about 10 minutes that should do the trick

dan, March 2009
link Click here to see other fixes for Mercedes.