[8D]Has anyone else had trouble with their CB's making excessive squealing noice when riding two up and the passenger having their headset plugged in. We have replaced every item on headsets and cables, and can't get it to stop. Took 07 ultra to dealer and went into shop with two techs and we stripped front fairing and tested all wiring and connections and they "THINK" it might be defective Harmon Carden radio( $1,000.00). They don;t want to order one for warranty and then find out it don't fix problem, cause they will have to eat the cost of radio. CB works fine when I ride one up. I have had 3 other Ultras and not had a problem with this before. I am perplexed as to correct direction to take.....Bldr

 

Bldr1000- do you have J&M headsets?

 

Wonder if it could be the rear plug sounds almost like it's not sheilded?? Have you tried swaping headsets front to rear?????

 

Hey guys: I have Harley headsets that came with or was purchased at the Dealership. We did swap helmets and even swapped with other bikes and it still did it!. Bldr