Does anyone know how to remove the headrests from a 05 LS430?

I read a thread that stated there are two screws on the bottom of the seat which hold the seat backing in place and once removed you will be able to see the pins that secure the headrests but I've searched for those screws with no luck. Also that was for a 01 LS430 so I'm not sure if it would be the same.

Any help would be greatly appreciated!

 

I believe to.bolts in question are on the bottom, near the underside. Feel around and look under, you'll see it