The rearview assembly of the present invention may include any one or more of the following: a housing for attaching to the vehicle, the housing may define an interior space that is acoustically separated into at least two chambers; a first speaker that may be located in a first one of the at least two...http://www.google.com/patents/US7266204?utm_source=gb-gplus-sharePatent US7266204 - Rearview mirror assemblies incorporating hands-free telephone components
