still no turn signals!!!

A couple weeks ago my turning signals went out and it is now a mystery of what happened. My first thought was a blown fuse. Put a new one in and still blew. There is a short someplace and we narrowed it down to the column. The front and back of the car has been disconnected and everything seems fine. So we thought the short must be in the column. I purchased a new turning signal switch we put that in and still don't work. The was my last hope. My hazards and instrument cluster lights work. The radio, heater a/c light, backup lights are all on the same circuit as the turning signals and none of them worked when they went out. But we got my cd player back on. Anybody have any suggestions. Thanks