Install CD player in Toyota Corolla?

To install a CD player in a Toyota Corolla, first, disconnect the car battery to ensure safety. Remove the trim around the existing stereo using a trim removal tool, then unscrew and pull out the factory radio. Connect the new CD player to the wiring harness, secure it in place, and reattach the trim. Finally, reconnect the battery and test the new CD player to ensure it's working properly.