The Nissan Path

The Audio Control Knob on my Bose radio in my 2006 Pathfinder just quit functioning properly.
When pressed, it scrolls through the menus but turning the knob to adjust the settings does nothing. Not the end of the world but when set correctly, the sound is fantastic. All the settings look like they went back to default.
Any else experience this or know of a fix?
Thanks.

If you Google "Nissan Bose radio repair," you'll find a number of places that repair these radios. You just pull the radio, which isn't that hard, and send it to them. Bose Corp. repairs them, too, but I imagine it would cost a lot more.