2003 buick regal Ls shift knob automatic transmission.

I am trying to replace the stock shift knob with an aftermarket one that I bought from autozone, I have tried everything I can think of to remove it but I
have had no luck. I felt around on the bottom and I do not feel a c clip but I do feel a small hole in the bottom but I do not know what it is. Please help me.
Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file

Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here. All logos and trade names are the property of their respective owners.