do not use glue! Instead use a good quality double sided tape. You have to remove the plastic moldings which held the glass. That is really simpel; look at the bottom of the beocord you see a small hole marked with an arrow, stick a paperclip in it and slide the plastic trim to the left. Now you can remove the cable connectors.
Clean up those plastic trims to remove all resident clue for a better stickyness. Because B&O used conducted paint, the height between the glass and the rubber underneath is important for a good working of the touchpanel.