Ah come on jaapv- you know the orange light is mentioned in the owner's manual

In common with other make cars that have one it's low intensity interior illumination so the area around the centre dashboard (eg radio, gearstick) isn't in complete darkness at night. Not as bright as those in say a Vauxhall or Audi, but it does work. It comes on when the headlights are on.
The small black grille thing I believe is the microphone for the handsfree phone system. On the other side of that plastic bit are the two ultrasonic transducers for the movement detection function of the alarm.