Chaining ground wire, axisdapter question

So I am starting to wire my axisdapter, and I was wondering exactly how to daisy chain. Do I just put two ends of the wire into each quick disconnect?

And since the Sixaxis has ground for the d-pad and L1 and L2, so I have 2 wires coming out of the Axisdapter board for the ground on that side? I have the ground wire from my JLF wire-harness going into the axisdapter, so would I need another wire to go to the L1 and L2 buttons?

And while I’m on the subject of the JLF wire-harness, what color wire is what button? I’m assuming black is ground. Thanks.

Yes.

Yes.

Yes.
Ground is Black.
Directions depend on orientation of JLF.

Awesome! Thanks again!