PSVita - PS4 Link - Chat Issues

[DanielVT]

I find myself constantly using the awesome PS4 Link on the Vita. I typically play Call of Duty Ghosts on the Vita, as such being able to talk to people is rather important to me. Especially when playing Extinction mode (where cooperation and coordination are tantamount). This leads me to my problem, and ultimately my question. How do I chat with people in game while playing the PS4 on my Vita? There has to be a way, but I think I've tried everything. Ive checked all the settings on the Vita AND the PS4. I've tried to hook the little earbud/headset that came with the PS4 into the Vita, and that does not work either. On the Vita when playing Vita games I could just talk and a built-in microphone did the job. When playing the PS4, this does not work either. Any help on this matter would be GREATLY appreciated! Cheers!