For all of you with a Sprinter chassis you already know that there is no place for a coffee mug nor a snack while driving. I fixed that in mine by adding a Ram laptop stand between the seats. DW can use it for her laptop or a small cake pan can be used to put chips in while driving. Attached a dual mug holder to the side of it. Had to make a custom base so that the riser pole is not in the way to spin the seats around. Problem solved. I added a couple pictures into my profile album.
Here is a link: https://www.rammount.com/mount-builder
It is very, very ,very solid. Fabricated base is 2-1/2"x2-1/2" x1/4" angle iron. The factory version for the Sprinter is only on passenger seat mounting bolts. It is in the way to turn the seat around. So, made a new base.