Support for tablet in the car

In my car there is a niche left, which was where the old cassette. Another niche, is the cd and dvd player.
As we do not use anymore the tape, it was an empty hole, I wanted to install a harness support for tablet, very useful when using the browser.
For that, I made in two stages. The first was to make a box that is inside the niche.
For its size being larger than the printer can run, split into two parts. Then did the support for the tablet, which is embedded in this box.
Also divide t