I can help with this, so unclip and remove the two A pillar trims, remove the top of the dash which will expose a bracket (picture1) that has 3 x 10mm bolts, remove the upper 10mm bolt then remove the two lower screws just above the heater controls and the whole panel will come out, nothing else is holding it in.
On your facelift car the two upper screws (behind the removable panel which you don't have) are replaced by clips similar to picture2, your clips will have a flexible push fitting on them which will allow you to pull out the radio surround.
