How do you replace the horn on a 2004 Toyota rav-4?

To replace the horn on a 2004 Toyota RAV4, first disconnect the negative battery terminal to ensure safety. Then, remove the front grille by taking out the screws or clips securing it, which will provide access to the horn. Disconnect the electrical connector from the old horn, unbolt it from its mount, and replace it with the new horn by securing it in place and reconnecting the electrical connector. Finally, reattach the grille and reconnect the battery terminal.