…and wire it properly.
I am assuming the Brown, Black and Grey are the new wires -
It looks right - assuming -
there is a Red in common at the other switch,
out of the top of the picture the Brown is connected to the Red of the RYB cable and
the red and black connected to the new switch are from the same cable.
Please confirm.
No, the other other switch. - the one you have not altered.Brown in common at the other switch.
No, the other other switch. - the one you have not altered.