I purchased a nice 2006 Fusion SEL 3.0, I need help to track a problem but not sure if this is the place to do it.  The air bag light in the instrument panel is on.  I took to Ford dealer and after several days they said it is the rails under the passenger seat that are bad and  they wanted $500 each to replace them.  I bought a seat out of another Fusion but when I installed those rails the light still stays on.