How Car Antena Works What Is Wrong With The Electrical System In My Car? It's A '96 Toyota Avalon.?

What is wrong with the electrical system in my car? It's a '96 Toyota Avalon.? - how car antena works

The other day, nothing works. The locks do not work. Antenna on the bottom. None of the lights to go inside. Dashboard clock does not exist. I have no idea what's wrong with him. It just happened suddenly. Do not mess with anything.