lol.... i know i am going to feel stupid at the end of all this.... but when i pulled down center armrest... the only button was on the plastic piece which remain vertical against the back seat. if you push that... it makes that piece come out... so you can see into the truck (for ski's).
there was no button on the armrest.... just regular material...hmmm....
although, i did do this at night in the dark... so i will have to take another look.