X5 Stereo Question
 

I recently purchased a CPO 02 X5 3.0i with Premium Sound system. The first time the vehicle was in any substantive rain the stereo would work intermittently and then would switch from front to rear to subwoofers. Now that the rain has stopped all is fine. Anyone had this happen as a result of moisture??? Difficult to bring back to BMW given that all is fine now.

THANKS PAUL