9-5 Aero (9600) L4-2.3L Turbo (2.3HOT) (2004)
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FM - antenna (antennae) integrated in the heating element.
The rear window is the same on all markets.
The antenna signal is amplified by an amplifier located on the right-hand C-pillar. The Premium and Prestige systems have one of two different antenna
amplifiers, red or black, depending on the market. The black amplifier is used for the Popular system.
The antenna amplifier is supplied with trigger voltage from pin 7 on the head unit and is grounded by being bolted to the chassis.
The black amplifier is used on all markets for retrofitted radios.
The left-hand C-pillar has an antenna filter that grounds the heating element but prevents the antenna signal from going to ground. The antenna filter is
fitted as standard on all cars.
Antenna system 1, black
1. Separate AM antenna loop at top of rear window.
2. FM1 antenna on same connection as the heating element.
A filter in the antenna amplifier prevents the antenna signal from going to the heating element's power supply. An antenna filter on the ground side
of the heating element prevents the antenna signal from going to ground
3. The heated rear window is connected to the antenna amplifier and antenna filter. A capacitor prevents the voltage from reaching the antenna
amplifier. The rear window heating is grounded via the antenna filter.
The amplified signal is fed via a coaxial cable to the radio.
Antenna system 2, red
