VIETA CDV7500GP Owner's Manual page 8

Installing the GPS Antenna / Aerial
Take care not to pull the antenna / aerial lead when removing
the GPS aerial. The magnet attached to the aerial is very
powerful and the lead may become detached.
The GPS antenna / aerial is installed with a magnet. When
installing the GPS antena / aerial, be careful not to scratch the
vehicle body.
When installing the GPS antenna / aerial on the outside of the
vehicle, always put it in the vehicle when going through an
automatic vehicle wash. If it is left on the outside it may be
knocked off and scratch the vehicle body.
Don't paint the GPS antenna / aerial, as this may affect its
performance.
Note: When attaching the metal sheet, do not cut it into small
pieces. Some vehicles use window glass that does not allow
signals from GPS satellites to pass through. On such vehicles,
install the GPS antenna / aerial on the outside of the vehicle.
When installing the aerial outside the vehicle (on the body)
Put the GPS aerial in a position as level as possible, such as
on the roof or boot lid. (The GPS aerial is fastened with a
magnet.)
GPS antenna / aerial
When routing the lead in from inside the boot
Clamps
Use clamps to secure the
lead where necessary inside
the vehicle.
When routing the lead in from the top of the door
Make a U-shaped loop in the lead
on the outside to prevent rain water
from flowing along the lead into the
interior of the vehicle.
Rubber packing
Clamps
Use clamps to secure
the lead where
necessary inside the
vehicle.
Water proof pad
Make sure the water proof pad
contacts the top of the rubber
packing.
Make a U-shaped loop in the
lead outside the rubber
packing to prevent rain water
from flowing along the lead
into the interior of the vehicle.
BR - 8