I also am doing my phasetek footwell lighting at same time, connecting all my wires in the box area. I just soldered my wires to the dome assembly, ran them to this box area, then ran both side of lights to the center and soldered them all together.
Back to scanguage- to get my angle I wanted, I used a table saw to notch a 45deg to be able to lock it in place. It is a shallow ledge, you may use dremel or whatever you have.
