My P38 is a 2001 County model, so a sort of medium spec. It doesn't have heated or electric seats, however it doesn't have a manual adjuster on the side of the seat like I've seen on other non-electric seats. There is this hole, which appears it should have a button pushed into it. I tried inserting a screwdriver today and twisting it, I can hear and feel it triggering a little microswitch in each direction, but nothing happens. Underneath the seat it's connected into some sort of wiring loom. Ignition was on when I tried it. I've looked online but can't find any reference to this type of seat with just one button. What should it do? And should there be a button in it?