You didn't give much info. If you thought it was the steering pedestal and "caulking" (Did you actually remove and re-bed it or just caulk around the edge?) it didn't work, then what about the adjacent pedestal guard mounts or even the binnacle on top? If it's not those, can you follow a logical path from where the water appears in the cabin to the source of the leak or at least rule some out? There are a lot of deck penetrations to consider in the area of your aft cabin -- cockpit scuppers or hoses, locker hinges, winches, cleats, dodger & bimini mounts, toerails, stanchions, cockpit portlite, etc. Tracing leaks can be frustrating. Water sometimes has a sneaky way of traveling far from it's source before appearing. Good luck.
Before going crazy with the caulking gun, look up MaineSail's posts on this site about re-bedding deck hardware with Butyl tape.