My PMA audio panel has all the 3.5mm input, "I" this and "I" that with auto muting and a few different choices of crew/pax isolation yada yada yada. Be buggered if I know how to use any of it . Can't be arsed figuring it all out, even the bird complains about the VCR under the Telly that's been flashing "12:00" for the last decade or more.