so I did a road trip the other day and the truck we were in had a stereo with an AUX input for mp3 players so I stopped at radio shack and grabbed a cheap AUX audio cable to plug my iPhone into it and play tunes off the ipod.. ever since I plugged it in I get this "charging is not supported with this accessory". 1. I was never trying to charge it, just playing music from it. 2. I've plugged several types of headphones into my phone all the time and never get this. 3. I no longer have anything plugged into it. 4. everything seems to be working fine, just get this dumb message on my lock screen and every once in a while a pop up while I'm trying to use the phone. so now how do I get rid of this message and how do I prevent it from happening again.