The volume knob "gearing" is very slow compared to my old stock radio (Ford Expedition). Is there a way to make one "click" on the unit move the volume two or three levels instead of one?

Turning the knob faster causes a bigger change per click, however turning it very fast doesn't work well. Experiment a little bit, it's feels somewhat strange at first but it's fairly usable once you get used to it.

Borislav