You rock!
I've been eyeing your knob since I got my avic but just didn't have the extra cash to spend. (I know, $30 isn't a lot, but I'm moving soon, and so I've been saving all my pennies for that).
Can't wait to get it and start adjusting my volume without changing the frakkin song every time!
You should think about machining up some AC knobs for Scions ... I know a whole bulletin board worth of people who would snatch them up!!
Thanks for doing this for the avic community!