What car?
Many Alfa interior lights have a 3 position switch. Off, automatic (with door open/close) or always on. Some Spiders use the lens to activate the switch - rotated one way for off, the other way for always on and in between for automatic.
Many Alfa interior lights have a 3 position switch. Off, automatic (with door open/close) or always on. Some Spiders use the lens to activate the switch - rotated one way for off, the other way for always on and in between for automatic.