Though iOS 13.3 fixed the Bluetooth crackle issue for me, another problem still exists which may be part of the issue that caused the Bluetooth issue in 13.2.
When using dictation / voice-to-text when connected to my vehicle's Bluetooth, dictation will stop after about one sentence or ~5-10 seconds. Visually it looks like it still hears my voice after 5-10 seconds, but no additional text appears. To get it going again I have to press the keyboard icon, then microphone icon to get another 5-10 seconds of dictation. This was not a problem before 13.2, and is not a problem when not connected to vehicle Bluetooth.
I'm wondering if others are experiencing the same?