Just did the kitchen. On mine, the blind is behind a wood valance which extends between two cabinets. Get your head under the valance, you should see two screws holding it to the upper cabinet. Once removed, the blinds are easy. Hopefully the bath is the same way.
John & Clare Lyon
2007 43.5' Monaco Dynasty Palace III (All Electric)
Towd: 2011 Chevy Equinox