Hello,
Here is an easy way to remove the plastic collar to get access to the 14mm locking nut. I threw this video together quickly after I installed my shift knob to give you guys an idea on how to do it. I believe everything is pretty straightforward except on how to remove the collar. If you guys want a more in depth video, let me know in the comments and I can do that. I made this video quick and short and I apologize if there are any mistakes. Good luck and have fun!
Links: need to verify first