A vehicle audio system includes an interior trim panel having an opening with a speaker module removably secured therein and having a speaker electrically connected to the vehicle audio system when the speaker module is positioned within the opening. The speaker module includes an interface for receiving an audio signal from a linked portable electronic device for playing the audio signal through the speaker when the speaker module is removed from the interior trim panel opening and electrically disconnected from the vehicle audio system, and for playing the audio signal through the vehicle audio system when the speaker module is positioned within the interior trim panel. The speaker module may include an energy storage device and/or generator, such as a dynamo or solar cell, to power the speaker and play audio from a linked digital media player and/or recharge an electronic device, such as a media player or cell phone.