Remove the polystyrene block by gently pulling the top towards you and pushing it down.
Remove the Torx25 screw from the side (circled below).
Remove the Torx screw from the lower bracket.
2 final Torx screws are found on the other side of the glove box, remove these too.
Look up underneath the glove box insert, you will see 2 plastic pins, pull these out with their inserts.
As you can see, as you push the pin into the insert it splays open holding everything in place.
The glove box insert can now be pulled away from the dashboard area.
If you have the MP3 input fitted already, be careful not to snag the wire as you pull.
Now you have the insert out, you can properly fit the glove box flap.