Mercury 1999 Villager Owner's Manual page 80

Controls and features
Station overload. Weak signals are sometimes captured by stronger
signals when you pass a broadcast tower. A stronger signal may
temporarily overtake a weaker signal and play while the weak station
frequency is displayed.
The audio system automatically switches to single channel reception if it
will improve the reception of a station normally received in stereo.
Audio system warranties and service
Refer to the "Warranty Guide" for audio system warranty information.
If service is necessary, see your dealer or a qualified technician.
AUXILIARY POWER POINT
The power point is an additional power source for electrical accessories.
There are two auxiliary power points:
One is located on the instrument
panel.
The second is located in the
drivers side 2nd row trim panel.
80
DC
12V