How do you swap 2003 Monte Carlo stereo?

To swap the stereo in a 2003 Monte Carlo, start by removing the trim panel surrounding the stereo using a trim removal tool to avoid damage. Unscrew the mounting screws holding the stereo in place and carefully pull it out. Disconnect the wiring harness and antenna cable from the back of the old stereo, then connect these to the new unit. Finally, secure the new stereo in place, reattach the trim panel, and test the system.