new lines are at the parts store with vacuum line.
the steering wheel cover is the air bag. back of the wheel is 4 small holes, 2 on each side, you put a screw driver in the hole and then twist it, this will unlock the spring clip. do one side, then the other, you have to hold the first corner up after it pops or it will lock back in.
after all 4 corners are free lift it of and un plug it.