Astro a40 help

I bout Astros a40s with the mix amp about a month ago. I played on my xbox for about 2 weeks and they worked fine. im in the process of a move so I pulled them to listen to music and cant get any sound. all I have hooked up is the aux cable to the head phones/. do I have to have the mix amp?

please help

Are you using the Y-splitter?

Don't plug the main cable straight into your 3.5mm port :)

I tried it both ways and it didn't do anything

Do I have to use the 3.5 with the mic swich

You can't do that much wrong, just plug the green marked connector on the Y-splitter in the regular audio out port.. Then plug the cable with the mute button in the splitter.

Read the manual please