Today my radio volume control knob suddenly stopped working. It no longer clicks as you turn it and nothing displays on the screen when turning. The steering wheel control still works but I'm curious if the switch is replaceable. Or is it possible to switch the stereo tune switch with the volume switch. I use a radio bluetooth connecter so I never change the stereo tune anyways. Has anyone seen this done before? It's not really a huge problem but its a inconvenience for sure. Thanks!