In case anyone else 
  has trouble locating the fuse box in a 67 Crown Coupe we 
  found the Owner's Manual to be incorrect. Apparently from 
  the early 60's to 66 it was located under the radio control panel. That's what 
  the 67 manual also says. But in 67 they redesigned it and failed to 
  update that section of the Owner's Manual. It is located above the 
  parking brake and attached to the inside of the dash panel.
   
  Dan 
  Collins
  67 Crown 
  Coupe