Also, after rereading your description, another option would be to use a smart bulb with one of the various smart switches designed specifically to work with them. Some of these are switch covers which fit over the existing switch. Other people just put a child lock on the existing switch and then put the battery operated switch next to the original switch. In either case, you protect the radio inside the bulb from the inrush surge, you still have a wall switch, no wiring is required and you only have to turn on one device. 
See the following FAQ: