Alright deed is done.
I bought a replacement antenna cable (
9CL3Z18A984B) and did the following.
1. Lowered the glove box and disconnected the antenna cable
2. Disconnect the two white mount clips holding antenna cable in place
3. Tied a string to the end of the cable
4. Removed the plastice antenna mount (just pry it up and it pops off)
5. Removed the 3 screws holding the base of the antenna
6. I then tried to pull it out from the hood but it ended up detaching the base plate from the end of the cable. So I then had to take the fender flare off and the unscrew the wheel well lining. At that point I could pull the old cable through but I think you have to do this anyway.
7. Fed new mount and cable through hood and pulled it through the firewall from the string behind the glove box.
8. Spit on the firewall grommet to get it seated, otherwise it would not go in. You have to push this in from behind the liner, not sure if you can pull it through from the cab/
9. Reconnected cable and put the mount back on.
10. Anti sieze on the threads of the new 50 cal and I am done.
All in all not to bad and I only broke one of the push screws that hold the fender liner on. All the yellow and white ones survived and at this point I would prefer someone steal it then have to go through this shit again.
Pics for clicks: