How do you fix radio in 1997 Mercury Tracer?

To fix the radio in a 1997 Mercury Tracer, start by checking the fuse related to the radio in the fuse box, as a blown fuse can cause it to stop working. If the fuse is intact, inspect the wiring harness and connections at the back of the radio for any loose or damaged wires. If everything appears intact, you may need to remove the radio and test it with a multimeter or replace it if it's malfunctioning. Reinstall the radio and reconnect all components securely to ensure proper functionality.