I'm still researching it myself, but I might have found the answer to the CB antenna problem. Look up the Shorty CB antenna, P/N 76386-09A. It includes a stud, P/N 76000166 which is used to attach the shorty antenna to the Tour Pak on a 2014 trike. You can view the installation instructions on the More Info page. I currently believe the standard CB antenna P/N 76250-09 will screw onto that same stud. The stud is available separately, and is very inexpensive.
I Ride: 2011 CVO Road Glide Ultra
1 year, 5 months ago