Hi


I am using strips of 3528 LEDs, connected to a 12v 6A power supply,
I would like to make them react to sound
I've looked up stuff with TP31 circuts, but I am unsure.

Here is the diagram.
http://i02.i.aliimg.com/img/pb/575/487/258/1279609125272_hz-myalibaba-web-temp1_3522.jpg

I would like to splice in a 3.5mm jack to plug into a headphone jack for the audio feed. I don't need anything fancy.
Each of the colors has it's own wire, so I would need 3 of them attached to one 3.5mm plug to retain the controller box.

Any help would be appreciated! :)