So the PO installed an after market stereo and my dvd player works but no sound to the head phone jacks. I ordered a new one off ebay but it doesn't light up so I'm not sure if it's the problem. But the new stereo is a old crappy pioneer and I think they might have cut wires or not even hooked up.

Question is do you think I should buy the stock stereo and test it out or can I find an after market stereo that'll allow the rear to control the dvd player?