Volkswagen The Golf 2004 Service Training page 48

Convenience and safety electronics
The aerials
In the Golf 2004, various aerial systems are
installed depending on the equipment level.
No provision has been made to allow retrofitting
of a rear window aerial.
Radio R 100
The aerial system for the R 100 radio consists of a
rear window aerial and a radio connection.
Radio RCD 300/RCD 500
On the RCD 300 and RCD 500 radios there is an
internal diversity tuner (automatic selection
between aerials). An external diversity tuner is
not required.
Two rear window aerials are connected
simultaneously to the radio. The radio
automatically selects the aerial with the strongest
signal.
48
+
AM circuit
FM circuit (+)
Aerial amplifier (impedance
transformer)
+
AM circuit
FM circuit (+)
Aerial amplifier
(impedance
transformer)
-
FM circuit (-)
S319_021
-
FM circuit (-)
S319_022