speaker jack noise wiring question follow up

[frank57]

This is a follow up to another thread I started but wow the noise I'm getting.

I hand wired them like A.
Sluckey suggested to copy Fender and I should have listened.
My layout is the other way around though.
Is B the same thing or should the ground wire go to both unused tabs on the bottom left of each speaker jack?
if I plug into the external jack then I have to ground the internal speaker tab to quiet it down.
Where is the big buzzy noise/hum coming from that the jacks are picking up?