[ QUOTE ]
I was listening to a radio program the other day, and a guy called in that worked for OnStar. He said thay can open up the mic in any car equipped with it, and they do it all the time just to listen in.
[/ QUOTE ]
From
their website
Q: If I'm not talking with an OnStar Advisor, or an Advisor and a third party conferenced in at my request, does OnStar monitor conversations in my car?
A: It is not possible for OnStar advisors to monitor car occupant conversations without notice to the occupants. When a voice connection is established with your car, a light flashes, there is a ring, and the radio mutes. Even if requested, it is not possible for OnStar to override this functionality. In addition, a voice connection is normally audible through the stereo speakers, and cars programmed with text display capabilities can see an indicator of a connection to OnStar on the driver's instrument panel. Moreover, OnStar's policy requires Advisors to announce their presence immediately upon establishing a voice connection.