Airstream drills a hole in the back of the TV and connects to the speaker wires, an analog connection of inferior quality. This signal feeds to the stereo head unit. In the 2012 model there was another device, hidden with the head unit, a Sony XA-300, that allowed the head unit to select inputs and there was a headphone jack on that unit. However, because of the inferior quality of the audio signal from the TV, headphone use was marginal. The who arrangement did work for TV sound from the overhead speakers, though.
To solve the whole problem, and some others, I just replaced the TV with a better unit that has a headphone jack, optical audio out, aux, and other features. It was not an expensive or difficult solution. Perhaps the best part, is I can use headphones while my wife is still sleeping in the morning.
Larry
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