What’s the orange wire on a car stereo?
What to Know. The 12V battery wire is yellow, the accessory wire is red, and the dimmer/illumination wire is orange with a white stripe. The right-front speaker wires are gray, left-front speakers are white, right-rear speakers are purple, and left-rear speakers are green.
What does the orange wire connect to?
You’ll find black and red or orange wires connected to 220-volt appliances like electric water heaters, well pumps, and older electric ranges.
Where do I connect the orange wire?
The orange wire connects to terminal O on your thermostat. The orange wire only applies to homeowners with an air-source heat pump.