Sync music with Leds

hi,

Is there a way i can use the arduino to sync music with LEDS?
Like useing an aux cord.
Then i want to move on to hooking it up to this LED table me and my friend made, then try it with the speakers on my car.

Any help would be appreciated, thank you

Have a look at these threads for ideas on the music sampling:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1268236683
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1267482002/3

There are too many threads to mention for switching LEDs.

Are the LEDs one single set, or do you have many independent groups?

The search box at the top of the page will look for threads mentioning, for example music and LEDs