I'm running wire for door speakers and I'm trying to figure out how the factory is routing speaker wire through the bulkhead. I've drilled the appropriate size hole in the bulkhead for my rubber conduit but I've run into the other side of the bulkhead sheet now I'm not sure where to go next. Did the factory drill another hole through the front of the bulkhead to get the wiring into the engine bay...or did they route the wire down out of the bottom of the bulkhead?