Does not fit in any aircraft

I had been looking forward looking forward to it, to watch the film on the plane with my earphones instead of the cheap headphones airline. In Airbus Lufthansa (model ???) I was taught a lesson then. The Double Jack is there on the side of the armrest and is embedded in the plastic casing. If you try to insert the adapter now you will not make it. The adapter housing is wider than the opening at the headquarters at the corners. So you get to hear any sound, so reuse cheap headphones.