Thank you for your suggestions and thoughtful comments. I was able to get the cable threaded. I enlarged the hole about ˝”, and was able to get a wire tie around the connector head. This gave me some side leverage, and I was able to get the cable out of the hole.
I have a great tip for anyone threading wires in a mast. I went to Home Depot and got Klein Tools Premium Synthetic Wax Lubricant. This stuff is amazing and the best $7 you ever spent if you are trying to get cables threaded though tight spaces.
Here the link at Home Depot: (32 oz. Premium Synthetic Wax Lubricant-56117 at The Home Depot
Thanks again for your help.