Turn off the device. Remove the operating unit
and place it into the case. Clamp off the
negative pole of the vehicle battery for the
duration of the disassembly. First remove the
front frame of the device by inserting a flat
object (e.g. the back of the disassembly key) between the device and the panel to the right and
left of the short side of the frame and carefully levering the panel out towards the front. Then
insert the two disassembly keys into the openings on both sides of the front of the device and
slide these until the stop. Make sure that the protrusion on the disassembly key, illustr. 8.2,
points away from the device during the insertion. Slowly and carefully pull out the device.
Remove the cable and antenna from the device.
Make sure that no vehicle cable can cause a short circuit after the device has been unplugged.