I thought of calling for Klaus, I did call them, am not sure who I spoke with, but, they just get the cylinders in and rebuild them and ship them out. I asked that. question on the removal procedure ...
My stealership service manager printed out diagrams on separate sheets of the different cylinders. I have not had time to study them closely yet. Their Xfire tech showed me one he was working on at his toolbox which was one of the locking cylinders that needed a new microswitch which he said he could no longer get....his customers Crossfire had been there 2 weeks....yikes! He doesn't use used parts.