Electrical issue - any suggestions?

[Ruthless Pastor 10+ year member]

Hello all. While driving down the road, the electrical system completely shuts down. It has done this several times in the past week and is at the shop right now. The alternator needed to be replaced but that didn't fix the problem. Now they're looking at replacing the ignition switch. There don't appear to be any loose connections.

Another thing, my amp was going into protection mode & it has an unregulated power supply. The installer assumed that was the issue w/ the whole car. However, I went a day without turning on the system and while turned off the car shut down again, only to be towed again.

I'm incredibly frustrated and am hoping someone might have some ideas. Thanks.

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