Corsa 1998 - Just under the LCD and above the heater controls etc, are\nthe two air vents with hazard light switch inbetween. The\nair-direction-wheel in the left hand vent has moved away and is\nsitting loose inside. I removed the radio, the air-circulation slider\netc and found two screws, still, the front panel won't come off. Now I\nread in newsgroups that the vents themselves can be removed with\nbutter knives. Just tried, still can't get the damn thing off. Is\nthere some knack to this?