Just going to throw the photos up and add the text afterwards.
Removed the cage and trim
Back of the radio
Pocket from a toyota car
CD player snaps right in perfectly
Yes the cd player is upside down - as I discover later on.
Moving out to the 4Runner:
I started by removing the 4x4 lever, philip screw holds it in place - you can likely do this with out removing the center console cover but I wanted to for some other reasons as well.
I was able to pull it with just my fingers, you may need something to pry on it.
Next I popped of the HVAC panel
More to come.