I drive a 9900 International. I am getting a loud whine in the CB speaker,
but not in the radio speakers, even though they share the dual antennas. The
whine increases and decreases with the rpms of the motor. After
disconnecting the coax from the CB transceiver the whine is gone. Does this
mean the coax or antennas are definitely the problem? ... or are they just
picking up on a problem with the alternator? The coax will be extremely hard
to replace, maybe impossible since this is a company truck. The alternator
would probably be easier to repair.

Any help to eliminate or even reduce the whine would be greatly appreciated.