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: Identifying Nuts For Cable Bushing, Key Lock Cable And Gear Cable
Courtesy of VOLVO CARS OF NORTH AMERICA.
Fold the carpet down. Remove the side panel.
Remove the screws for the cable grommet in the cowl-panel.
Remove the ignition switch interlock cable from the transmission cable.