If the locked doors are the ones I suspect, they are only available if you talk to a NPC and take his challenge. Not possible to do unless you go in with the disguise to avoid combat. Nothing useful behind those doors, though.
The wires running from the locked door you must go through lead to the four corners where there are four levers. Each utters a word when pulled. They must be pulled in the order that causes those words to form a sentence ("beware of the traps").
Hint - that is REALLY good advice.
