Pioneer GEX-500DVB Owner's Manual page 8

CONNECTION
Other connections
Connecting to the car radio for audio signal output
The audio outputs from the DVB-T receiver AV output can be connected to a free input on the car radio
(e.g. AUX) in order to output the tuner's audio signal via the vehicle's loudspeakers.
Note: when audio cable is connected like this, only a video cable is connected to the input of the car display
in your car AV SYSTEM.
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