How to set front audio/mic in CPU..???

[kool]

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.

Phone-R
Phone-L
GND
Mic

But don't know in which slot I've to put. I'm attaching screen shots of my Motherboard. because i've only 4 wire. there are 7 slots.


Here is detail of my motherboard.
http://forums.techarena.in/reviews/1073004.htm

[kool]

and also i want update my bios. From where i can get its firmware..????????