I have a J&M CB on my 16 SGS. Main reason for J&M for me is I have 5 bikes with that CB on them. Going with the HD module would mean a different helmet hookup. I had it installed at the J&M headquarters in Ohio. They made one mistake which gave me a very limited range. They used a splitter to allow the radio and CB to run the antenna on the original cable from antenna to front cowl. The CB needs a separate proper CB cable, the FM ant cable will not work. Installed a separate cable and fabricated a new mount for the CB antenna and all works well.