heat & air on 2002 BMW 525i

blower don't come on ac or heat but ac gets cold and the
heat gets hot

Asked by for the 2002 BMW 525i
If the blower does not work, it may be the 'final stage' which is a fancy blower motor resistor module, but check the wiring and make sure the switch works ok, because the final stage is about $100, I just replaced one.
where is the fuse at can't find it.