Zq8003 Manual ((exclusive)) Direct

// Ramp down speed for(pwmValue = 255; pwmValue >= 0; pwmValue--) analogWrite(pwmPin, pwmValue); delay(10);

If you did not receive a physical manual, these generic guides cover the core Android interface used by ZQ8003 units: Generic Android 10 Car Stereo Manual (PDF) Android Car Navigation Operations Guide wiring diagram zq8003 manual