First, turn off the power to the circuit.
Be sure to check local building codes for proper installation and permits.
JDRoberts January 4,7:
But as I said, you can pretty much end up having to rewire the entire room to make this work so that every radio always has power.
I interracail amateur sex tubes that many people instinctively want to make the master the first in the circuit closest to the circuit boxbut in fact as both your diagram and the GE diagrams show, it often although not always makes sense to have the master last on the circuit closest to the light.
The Carter system is now prohibited in the USA.
There is no way we can anticipate every situation and we do our best to inform of any risks for each job.