I am purchasing a 1997 volvo 960. There is a problem with the sunroof.. When I press the button to retract the sunroof I can hear a click but nothing happens. Is this a problem with the motor itself or there an electrical problem, such as a blown fuse or relay? Any help would be greatly appreciated.
... Also is there a relay switch for this sunroof, and if so where is it located?

thanks!