2016 chrysler 200. Car makes high pitch squealing noise inside when car is off

Hello, this is quite odd. I can't imagine what such a noise would be, other than from an electrical module with internal concerns being present. It doesn't sound more remarkable, I'd just keep an eye (ear) on it. If it's significant, check it with local tech near you. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops