I also figured it's
gotta be the spider hitting against the basket, but it's really well glued around the entire perimeter from inner edge to outer edge.
It seems odd to me that I'm able to reproduce the click by manually moving the speaker ... but that it clicks at completely randomly times ... I.E. sometimes I have to push it hard to click, other times my finger just barely makes first contact with the cone and it will click, and pretty loudly.
I've never had a wire come off the voice coil so I'm in new territory.
There is a tiny lead poking outside the cone (pic below), I've moved it away from all other surfaces so it doesn't appear related?? And the clicking noise is hearty enough that it sounds more like the strength of a voice coil wire. Dang. Is it off to the repair shop and which one?