Fabricated headphone jacks and covers. Decided that I will surface mount them behond the seatback brace and most linkely on the outbaord seciton of each side. I will drill out two of the rivets that hold the seat back assembly and re-rivet with the angle. The jacks are installed and the cover plate is held in place by the two jacks. I will prime and paint when then are installed. See pictures of two potentia locations.