i was cleaning the inside of my car , and i noticed the pass seat belt mount, down by the floor next to the B piller, under a plastic cover where its mounted to the floor, it has some wires going to a plastic part on the belt where its hooked to the floor. it says on the label ( for use with airbag ) well my freestar has this to and it doesnt have side airbags, like my focus. i kno it has to be part of the restraint system. but what part? is it part of the pass airbag deactivation system , or is part of a side impact sensor. dont really need to know just curious. thanks