Adrian Worman wrote:Under the rear seat cushion, tucked safely away above one of the springs?
That is just one of the places he will have looked Adrian.
Taped to the back side / top of the glove box insert. 
Under the front bucket seats in the springs 
Inside the bucket seat backs 
Under the rear seat bottom 
In the rear seat back. 
Under the package tray(speaker shelf) 
Under the carpet