Upgrading the factory stereo in an OBS Chevy is a popular project for truck owners who want better sound, modern features, and a cleaner interior experience. Many of these trucks came equipped from the factory with a DIN and a half stereo, aka a 1.5 din radio, which was common in the late 1980s and 1990s. While this format worked well in its time, it can limit your options today. Before...