My dealer installed my CB and encountered considerable difficulty and I incurred excessive cost for three reasons:
1) HD's frame-mount CB antenna does not mirror the AM-FM antenna position or angle. It also interfered with the SERG fender extensions. I had to go to a Dakota Digital (fairing mount) AM-FM antenna (with lousy reception) to avoid the JC Whitney appearance of HD's mismatched dual antenna.
2) The overlay cable that HD recommends (70169-06) does not extend to rear Tour Pak speakers, requiring the purchase of another cable, and it buries the tank console connector under the gas tank. The Technician researched and selected the use of 70160-08A, a more expensive harness.
3) HD elected not to equip the SERG with a PTT switch, even though the FLTR has the PTT switch (on a bike without CB). For some boneheaded reason, rather than use the internally wired - chrome plated housing switch cluster from the SEUltra, HD eliminated the switch on the SERG. It is unbelievable how much technician time is involved in adding the PTT switch because a special internal bracket is needed, then a different lower handlebar housing (for volume & PTT switches) and then the tech discovered the volume control switch also needed to be replaced.
If I had to pay non-discounted prices and if the dealer hadn't 'eaten' some of the labor, my CB install would have cost over $4,000!
p.s. I've made three attempts to get HD's attention regarding this situation, to no avail.