Where do you connect the orange wire in car stereo?

The orange wire on a car stereo is typically used for the illumination or dimmer function. This wire connects to the dimmer circuit of the vehicle, which adjusts the brightness of the stereo's lights to match the interior lighting of the car.

Here's how to connect the orange illumination wire on a car stereo:

1. Locate the orange wire on the car stereo harness. It may be labeled "ILL" or "DIMMER."

2. Identify the dimmer circuit in your vehicle's electrical system. This circuit is typically controlled by a dimmer switch or rheostat, which allows you to adjust the brightness of the dash lighting and other interior lights.

3. Connect the orange wire from the car stereo harness to the dimmer circuit in the vehicle. This can usually be done by tapping into the existing wire using a Posi-Tap or similar connector.

4. Test the connection by turning on the headlights and adjusting the dimmer switch. If the stereo's lights dim in accordance with the interior lighting, the connection is successful.