Harmon Kardon Dvd Changer The Best Harmon Kardon Soundsticks 2 Wont Work With Vizio VA 26 Inch Flatscreen?

Harmon Kardon Soundsticks 2 wont work with Vizio VA 26 inch flatscreen? - harmon kardon dvd changer the best

Harmon Kardon Sound Sticks 2 uses to work with Vizio Inc 26 working-inch flat panel monitor?
I have a Harmon Kardon sound sticks 2 audio, VA2, and a 26-inch Vizio LCD flat screen TV, I have recently tried to connect Harmon connect the audio cable connector (into the headphone jack on my MacBook plug) in Headphones jack on the TV. I have no sound from my speakers. Can anyone tell me whether there's a reason this will not work, and if not, as the speakers are connected (which comes with a converter for use with the AV / Comp needs to work with DVD players or game systems work)