i'm installing smart switches, and found the neutral in another area so i assumed it'd be in all the switch boxes. Well not these two. It's a 3 way switch, and in the back of it there are white wires connected to red wires. Would this be the neutral? I also heard the neutral wire could be behind the switch box.
house built 2000 3 way switch
any recommendations on verifying a neutral or where to find one?