First read and observe the introductory information
and safety warnings
For factory-fitted radio and navigation devices, the aerial for radio reception can be installed in various locations in the vehicle:
Aerials on the interior of the windows can be identified by thin wires.

NOTICE

NOTICEWhen retrofitting a radio or a navigation system ensure that the vehicle's standard integral aerial amplifier is compatible with the radio or navigation system or else use an additional antenna adapter. Otherwise the aerial amplifier could be subjected to overvoltage damage.
Interference of AM radio reception could occur if electrical devices are used in the vicinity of the aerials in the windows.
Using the vehicle in other countries and continents
Component protectionRemoving and installing front passenger side footwell cover
Removing
–
Remove bolts -1-.
–
Release front passenger side footwell cover
-2- from dash panel and centre
console and remove it.
Installing
Note
...
Checking vacuum generation
Note
The average air pressure of the earth's atmosphere at sea
level is 1013 mbar and decreases steeply as the altitude
increases (approx. 100 mbar/1,000 m altitude). Local and time
fluctuations also influence vacuum generation.
...
Checking fuel delivery rate, vehicles with four-wheel drive
Special tools and workshop equipment required
Removal wedge -3409-
Remote control for V.A.G. 1348 -V.A.G 1348/3A-
Multimeter e.g. hand-held multimeter -V.A.G 1526E-
Test instrument adapter/DSO (5-pin) -VAS 5565-
...