audio/mic

Hi friends....... I've ASUS motherboard, (P5KPL). its 2 year old now, I want to set front audio and mic, but i dont know how. So plzz help me guys, Front USB working fine, But audio/Mic is not working, I've extra 4 nodes of wire left in cabinet. :cry::cry::cry: Phone-R Phone-L GND Mic But...