I am installing ceiling fans with remotes but I would prefer a hard wired wall switch. I purchased a wall switch but it came with a remote receiver and is essentially a wall-installed remote and I don't want to deal with replacing batteries. The receiver acts as a switch for the light and fan and therefore only requires a single hot input.
The problem: From the wall box to the existing light fixture there is 1 hot, 1 neutral, and it's grounded via the conduit. I'll need separate wires for the light and the fan.
The question: Do I need to run another wire through the conduit so that I can connect them separately? If so, what is the easiest way to accomplish this task? Is there another option that I'm unaware of?