I have a Motorola Moto E 2nd Edition running Android 6.0.1 (Marshmallow) and CyanogenMod 13.0. I get a chirping sound whenever I plug or unplug the USB connector. This behavior started recently, when I was having some problems with my SD card. What setting controls this behavior? If the chirping is warning me about something, what is it warning me about? I can't find anything in the settings either for Notifications or for Sounds. It seems that on some phones, "Sounds and Notifications" is a single set of settings -- but not on mine.
