Hi All,

I have a 14 SGS that has started getting a popping noise only when I play a radio station. USB IPhone music is crystal clear. The popping noise sounds like it is in sync with the sparkplug. As I increase engine RPM, the popping frequency increases with it. Its not a buzzing noise like engine feedback, but a popping noise. During winter, I installed a daymaker reflector headlight and the front CD Ringz turn signals and installed the 1.18.3 software. Those are the changes made since the last time radio was good. I have installed the 1.19.0 software hoping that would fix something. I do have the fairing mounted hidden antenna. Any ideas where to start looking to solve this? Is there a ground wire I could have loosened somewhere during the Daymaker install? Dealer wants money to look at it so any help before I take it in to them would be greatly appreciated.

Thanks
Kurt