Now to the housing. The large white PCB that you see in mine was in the original rackmount gear. As you can see, I cleared most of the components off the white PCB, but left some. I keep the board itself in there, so that I can anchor the CSV to it.

The photo shows the installed 9v jack on the back panel, with its black and yellow wires going to the DPDT on the far right. (The pot that you see attached in the middle of the front panel is not functional. It only helps secure the board to the lower metal sheet.)