If you can travel to a truck stop, I am sure they will have one. I did
not search for your particular cb model, but I did have a realistic cb
and it had a three pin power cord. I did a search real quick and found
this website.

http://www.kenselectronics.com/lists/pwrcord.htm

I am sure that you can find which end it is an be able to buy it for a
cheap price. I would recomend going to a truck stop.

Hope this helps,

Greg