Lost Power on the console

[Bmwtvboy]

Weird. Started up the X, everything great, but the A/C-Heater control panel on the center console is dead. No lights, no nothing. What fuses? Is there a relay for this thing? Do they just up and die one day? Expensive to replace the unit?
Thanks for getting me straight, as it's starting to cool off up here in Maine soon.
J
PS. 230K, X5,3.0, auto. 90% original... just drove from FL-ME.