Up for sale is this dome light switch - fits NG 900 from 1994-1998, as well as many 9-3's 1999-2002, ans dome 9-5's - this is the 3 position switch, off, on, and door.  These units often fail due to water damage or damage from beverages going into the center console (in 900 models). If this switch is bad, you will have NO dome light function. This one is good used, and still quite nice.