Blue wire is for a tach I believe
I connect the red wire to the blue wire to deactivate a bomb.
The purpose of the blue wire in a thermostat is to connect the thermostat to the air conditioning system.
connect the blue wire to the red wire before you press "START"
Light blue is for steering wheel controls or a wire remote control.
The blue wire on a ceiling fan is typically used to connect the fan's light kit.
The blue wire on a ceiling fan is typically used to connect the fan's light kit.
The blue wire on a ceiling fan typically connects to the light kit or light fixture.
The correct way to connect the brown and blue wire in an electrical circuit is to match the brown wire with the live or hot terminal and the blue wire with the neutral terminal. It is important to follow the color coding to ensure proper and safe electrical connections.
The purpose of the blue wire on a thermostat is to connect the thermostat to the air conditioning system for controlling and regulating the cooling function.
It is not advised. Connect the dark blue wire to the black wire.
If your are using a wire kit, you need to connect the blue and/or blue/white wire from the harness to the blue/white wire from your radio. Now if you have cut your wires you will have to locate the one wire that will turn on your factory amp.Good Luck!!!!
The blue wire on a tachometer is usually connected to the instrument panel lighting circuit. This allows the tachometer to light up when the vehicle's headlights are turned on. It is important to consult the tachometer's installation instructions for specific details on wiring connections.