If his SSD is anything like my BL, you may want to open up the cut out a little more than FI suggest's.
My BL JUST fits into the cutout FI recommended, the basket is huge and the push terminals scratch the cutout when I dropped it in.
When I went to remove the sub, it was stuck! After removing all the screws I had to flip the box over and pound on the back to unseat the sub from the cutout.
Note to self: Dont plan on removing the subs often once they are installed
