I had a similar problem on my LT - using the little Torx screwdriver that came with the Nav II, I tried & tried to undo it - the screw was apparently just 'turning, but not undoing :wtf ' - when I got back to my garage, I used a different torx bit & ratchet, and the screw just came straight out. What was happening was the actual bit in the NavII tool was slipping in the chrome handle. If you don't have a suitable sized torx security bit, just turn the 'bit end' of the supplied tool with a leatherman
I hope this helps you.
Last edited by woolly; Oct 17th, 2006 at 9:06 am.