[PaulThai]

Is it me or is the RNS making noise even when it's off? Listen to the stereo speakers when it's off - I can hear white noise in the background. Has anyone noticed this also?

 

[AudiA4B6US]

This seems to be a feature of some BOSE systems. There were reports that Audi had replaced some BOSE amplifiers if the background noise is to loud but they don't seem to do this anymore. I heard this noise with my Symphony II too, maybe a little bit less. But I can hear it only wihtout the engine running. While driving the other noise overlays this.

The difference might be that the RNS-E does not turn off immeditaly, it takes up to an hour after locking the car. The Symphony turned off with ignition, and with it the BOSE amplifier...

 

[the911sc]

Mine does this also.
Is it a fault or a 'feature' !
?

 

[AudiA4B6US]

Several messages on other boards indicate that this is a feature, although some with an early Bose Audio Pilot system (2001 in EU) got the Bose amplifier (not the head unit) replaced.