Hello, I'm replacing one of my light switches with a dimmer and noticed that the original switch was hooked up to a red and blue wire (with no ground). There are also two wires (1 black and 1 white) in the wiring box which are capped and no ground wire to speak of. My dimmer switch has two black wires and one green for ground.I'm wondering if the two black wires on the new switch should hook up to the red and blue in the wall and where to connect the switch's ground wire. Also, this is for US wiring.Thanks via /r/DIY http://ift.tt/2BWVeew
