Originally Posted by alaxfire

The "KEY" is the special tool that most people seem to be missing.

From the service manual, it appears it CAN be done :
1. Lower the convertible top. ( EXCEPT FOR MAYBE THIS STEP .....
2. Remove both A-pillar trim panels. (Refer to 23 - BODY/INTERIOR/A-PILLAR TRIM - REMOVAL).
3. Remove both sun visors.
4. Remove the dome lamp assembly.
5. Remove the lower windshield trim panel and disconnect the universal transmitter harness connector.
6. Remove the upper windshield trim panel.
7. Disconnect the latch retainer switch harness connector(5).
8. Remove the latch retainer bolts (4) and remove the shim (3) and retainer (2) from the windshield header (1).

( the Allen bolt is located top center in the trunk, it is the manual release for the rear bow latch, nothing to do with the header latch )