车内电源怎么接?

车内电源怎么接?

• ACC (红色), supplies +12V power to car audio and other accessories, only when the car’s ignition is switched on.
• Constant (黄色), also called BAT or Battery, provides permanent +12V power from the battery. This allows the radio to retain settings (for example stored radio stations) when the ignition is switched off.
• 地面, abbrev. as GND (黑色), 0V, is usually connected to the vehicle’s metal chassis and body.