2001 Porsche Boxster 986 Black R L Defrost Vent Trims Dash Covers 61 461 | eBay
I would offer them $50, also be careful taking out the old ones as you need to use a flat putty knife or similar but you can cut your leather if not careful
The center piece is part is like a plastic dome cap,part of the alarm. If you cant find this let me know i should have one for $10 shipped
01 Porsche Boxster Dash Ambient TEM Alarm Sensor Assembly | eBay