WARNING: This page is about a different car, the 2002 Volvo C70, 2001 Volvo C70, 2000 Volvo C70, 1999 Volvo C70, and 1998 Volvo C70. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: Bending Hook To Side And Removing End Of Cable From Opener
Courtesy of VOLVO CARS OF NORTH AMERICA.
Remove the interior door handle (4 screws).
Carefully bend the hook (5) out of the way and detach the wire end (1) from the interior door handle.