there are two torx screws(covered with plastic caps) below the upper pad, positioned at 9 and 3 o'clock(i suppose), both of them won't be removed/fall off completely, after removing it, there is a wire connecting the pad to the spiral cable that i needed.
NOTE: be careful in handling srs airbags, although i did it myself on mine without any background on handling them.
thanks for the time that you will make
ted