Why is it power getting off whenever I play songs from aux?

I have an JBL on time micro ipod speaker. When I connected my sister's phone from aux pin there was sound distortion means like songs not playing clearly and then I wounded th aux pin to make it clear. Suddenly my jbl on time speaker power went off and I removed the aux pin and turned on and then the power started going off and I plugged my ipod same problem happening. I would like to know what might be the problem and how to get it sort off this problem?