Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Its cable broke after being used for about 5 times

I bought it at Radio Shack and after carefully using it in my car for about 5 or 6 times, the cable that connects the audio output to the device, broke. I was so surprised that I sent it to the Customer Service of iRock asking for it to be replaced or repaired. Well, that was three months ago and of course I haven't heard from them.