I am pretty sure I didn't tap into power seat connectors. SLK seat is manual just as my XF seats. the cable that comes from the console or underneath the floor has 4 for passenger and 6 for drivers seat. On both side, there are 2 thicker cables. I identified them as the heated seats cable. The color matches with the ones from the manuals. The confusion part comes from the SLK seats. They have different color cables than ones from XFs. I made the best educated guess by looking at the placement of the pins on the connector...etc. I just can not comprehend how this can effect the airbag sensor. It would make sense to have same amount of wires for each seats since 2 are allocated to the heated seat, 2 for the sensor for the seatbelt, then 2 for the sensor to see if anyone is actually sitting on it. Oh well, since tomorrow is Sunday and supposed to be nice, i'll rip the seats apart one more time. Thank you everyone. For some strange reason, I feel that someone will figure this out.