You should have a fuse diagram either in the manual or in the fuse box itself. It is a little fold out sheet tucked in there.
If not, the dealer can hook you up.
If I am not mistaken, there is also a fuse in the back of the becker unit.
You may have lost both fuses!
You will also need the radio code once you get power back to the unit.
If you don't have that, it is off to the dealer again.
Good luck!
