See also:

Rear Seat Audio (RSA)
This feature allows rear seat passengers to listen to any of the sources: radio, cassette tapes, CDs, or DVDs. However, the rear seat passengers can only control the sources that the front seat pa ...

Under the hood
Unique with its all-four-cylinder powertrain, the Buick Regal relies on the excellent horsepower-per-liter ratio of the Ecotec engine family to deliver smart, on-demand performance that is also ve ...

Audio Source
VOL/ (Volume/Power): 1. Press to turn the radio on or off. 2. Turn to increase or decrease the volume of the active source (i.e., current audio source, active navigation voice guidance, or ...