So the mustang bridge didnt fix it, but it helped the action.
I'm getting used to the ringing now, but fixing it would be cool too.
It's coming from behind the bridge still, but it can't be the bridge that's the problem. It doesn't come through the amp, either.
And I think it's stronger towards the bottom, so on the low E it's barely noticeable and it's strongest around the B and high e strings.
