I use something similar but with np-1 cups. Switching diode is in one cup with cables going out to a switch to turn on all wireless. 1 lead to a 4 pin xr white I have going to wireless. A Hirose to go to recorder that all ways on with no switch. One cable goes to external np-1 battery cup which I use with either an np-1 battery or an old battery empty np1 with a 4-pin XLR built inso I can either use AC or battery.