How do I connect my xbox360 to my home theater dvd/vcr combo box whihc is...

[Xbox360]

...onnected to cable box? Hi I have a tv with AV jacks on the front of the TV and currently my cable box is hooked up to the back of my tv . also currently my dvd/vcr home theater is connected to the cable box. how do i also connect xbox360 to the home theater .

Thanks