I wanted all of these devices and wiring to fit neatly inside the dash where the radio used to be. So I made a plexiglass box to hold everything. I just measured the dimensions of the radio and cut the plexiglass and glued it together with silicone glue. There is a small slot in the front of the box that is just big enough for my hand, so I can access certain parts that I want to mess with, like the charging socket and the USB hub. I bought a new dash trim piece for this project, so that I could keep the radio and the stock trim piece together to return everything to stock should I sell this car. I cut up this new trim piece to fit the mounting solution.