The how do you hook up a 3 way light switch
is to add a second switch in a convenient location. Fold the wires back into the box and screw the switch into place. Will I need to connect both black and both whites to the sources the ones coming from the junction box and the ones going to the 2nd switch. You may have to pry the box away from the stud slightly to create space for the blade. If you have the setup shown in Fig. In the top diagram — the diagram where tinder dating site for android
switches are labelled S1 and S2 — the wiring to the bulb is backwards.