just loosen the base of the antenna,(look under the mount) twist it back and forth a little, tighten it back down.
the antenna plugs into the cb with a (car antenna) type plug. unplug it make sure it's clean.
have NO idea if the suppressor comes with the bike. both I/S's i've had already had the cb installed. sorry
we are also in a major sun spot cycle, that will put more noise on the radio.

i'll check my radio tomorrow and see what squelch is needed on mine.
