My '13 has exactly the same issue. I can hear the fabric crackle if i press against the inside of the rear top even when the car is stopped. However, the crackle goes away after 10 minutes of driving. Brought it into dealer, they said they took it apart and re-arranged some wires/cables within the top. Was quiet for a day then it all came back.... Has anyone figured out a permanent fix for this? I am almost tempted to take the top apart myself to see what's in between the inner and outer layer of the top..