Bathroom Light and Fan connected at switch need to separate
All of our bathrooms have the vanity light fixture and the ceiling exhaust fan connected to one switch, so we can never just have the light or just the fan on. They are ALWAYS on together. We want to put them on sperate switches, but when we opened the face plate we found to white wires bound together with a cap and 2 black wires one going into each side of the switch, plus the grounds. Through trail and error we found one Black and one White were live wires, we tried multiple combinations but can't seem to get the fixtures to separate. Is it even possible? I am wondering if maybe the light and fan connect somewhere in the ceiling. I clearly have no clue and would appreciate any input out there. Thanks :)