I have the glove box out and have removed the brace bracket phillips screw and 2 10mm bolts on both sides of airbag and disconected airbag harness but it seems to be stuck on the backside closer to windshield ,what am I missing for removal ,I am trying to replace it with a new one ,also is there a switch or sensor that needs to be replaced after a front end bumper collission both bags driver and passengars deployed ? help please