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 Cable Harness With Grommet And O-Ring With Connectors To Solenoids
Courtesy of VOLVO CARS OF NORTH AMERICA.
Install the new cable harness with the grommet and O-ring. Connect the connectors to the solenoids.