[rawfuls]

But, there are notches, I thought I could do one vertical, and one horizontal, but you can't, as there's notches on the wrong side.

So you can only do top horizontal and top horizontal, and the corresponding plug, bottom horizontal, bottom horizontal, vice versa with vertical.

Hope you get it...
It's almost impossible to find a way to plug a red to black, when you have it setup like that.