I decided to mount the sequencer in the red section as it has the most room, I made sure to keep it neat and tidy so the wires mostly ended up in the section below.
I mounted my sequencer in the yellow section. All my sections are the same size thoguh, so it didn't matter for me. The middle was just a preference.....
I liked the idea of putting it in the red so I could make it look neater and have more space, all of the wires would reach so it doesn't really hurt doing this.