Let me know if you have any questions. I remember talking to you about this regarding my 7'' tablet install.
I personally am not familiar with the obd that you purchased, but the Kiwi PLX is a hundred bucks if you want to save a little cash.
PLX Devices Kiwi Bluetooth Wireless Trip Computer and OBDII Scanner : Amazon.com : Automotive
I would also suggest pulling power from the passenger side plug. it's not very hard to run at all once you have the center console out. Tight in a few places but there's plenty of area to work in.
Also, I would suggest wrapping the interior of the cubby with some kind of material for a finished look. I used DiNoc.