Has anyone noticed a noise when shifting? It's a mechanical sound, and I guess I would describe it as a "click" then a "clack" (no, I don't only hear it when listening to NPR). I only hear it faintly under low revs, if the stereo is off and I'm shifting up - it doesn't seem to be present when shifting down. To me it doesn't sound like a horrible noise or anything damaged, broken or bad - but in saying that, manual vehicles I've owned in the past haven't had the same noise. Any thoughts?