Subaru 2002 Legacy Owner's Manual page 260

The electrical power socket located on the lower part of the instrument
panel can be used as cigarette lighter socket. A cigarette lighter plug is
an optional accessory. It is available from your SUBARU dealer.
The cigarette lighter socket may also be used as a power source for an
in-car use electrical appliance.
B Use with a cigarette lighter
WARNING
To avoid being burned, never grasp the lighter by the end with
the heating element. Doing so could result in injury and could
also damage the heating element.
CAUTION
Do not hold the lighter pushed in, because it will overheat.
6-10
HB6011BA