2009 Toyota Corolla electrical system problems

I was driving on ca hwy 101 at 7:30pm when I smelled, then saw smoke and flames coming from the driver-side door. Luckily, I had a gallon of drinking water within reach. I poured it on the fire while swerving to the margin so as to avoid collision. I extinguished the fire and disconnected the windows-switch panel. Apparently, a short-circuit in the window switches ignited the sound-insulation material that should have been fire-proof to begin with.

The radio shuts down for seconds at a time - obvious power failure. When the power is restored (seconds later) radio returns to same station. When it happens radio light only goes off then comes back on. Usually happens after car is driven about 15 to 20 minutes, then it happens non stop even with the volume down. Sounds like a rock is hitting the windshield. It is a very loud, very startling noise.