The 2012 Toyota Corolla comes with a factory-installed double-DIN audio system designed for everyday convenience and reliable performance. Depending on the trim level (L, LE, or S), the stereo includes AM/FM radio, CD player, MP3/WMA playback, USB connectivity, AUX input, and Bluetooth hands-free calling with audio streaming on LE and S models. Steering wheel audio controls are also available on higher trims. I can make a shorter marketplace-style...