I have gotten "DRENCHED" several times on my '14FLHX, never had any audio problems at all, it could be in your left joystick or switch housing. I would make a trip to the dealer and let them know what has happened and see if they can find a problem.

 

Thanks for the replies on this one. I haven't been able to recreate the problem again. The dealership stated that turning off and on again has fixed the problem on other bikes... but if I have it happen again, I'm supposed to take it in while the problem is happening.