The Wii remote doesn't need to connect to the Sensor bar. Usually the Wii remote just uses the sensor bar as an orientation.
If it's wireless, there should be a switch on it to turn it on. That's all you have to do (unless you didn't connect the wiimotes to your pc)
If it's wireless, there should be a switch on it to turn it on. That's all you have to do (unless you didn't connect the wiimotes to your pc)