I am in the process of installing a 6 zone Grafik Eye in finished room. This thread was very helpful in figuring out what I needed to do so I thought I would share my progress.
Disclaimer: I am not an electrician so I don't recommend you do as I do
I am using a 4 gang masonry box. I added some spacers so I could screw the box into wood on both sides:
I had to cut the hole taller than the box to be able to fit it in there with the wires pulled through. The extra width in the hole was because I decided I needed to attach it to two studs after
I cut the first hole
. I think it is typically easier to patch a big hole then a small/oddly shaped hole so if I had it to do over again I would just open it up larger all the way between studs.
Here is m wiring progression:
To connect all the neutral and grounds together I used these: http://www.amazon.com/Ideal-30-1034J...h+in+connector
I wish I could have found the connectors that join 8 wires locally but oh well. I used 3 of these jumpered together for both neutral and ground.
I have a rough-in inspection hopefully tomorrow and will update this message afterward.