You will need to remove the top dash. From memory, iirc take dash strips off undo screws behind them, then 3 more in the demister vents, pop up and remove the top part of the steering wheel housing and undo 2 screws under the speedo, then 1 either side of the dash. Peel back the door seals near the windscreen and remove the A pillar trims, be careful of the alarm sensors.
Sit in the passenger seat and put your fingers in the demister vents and pull the top dash towards you. If it doesn't move a may have missed a screw.