Mazda CX9 iTunes automatically starts?

If I'm on the phone using my bluetooth in my 2014 Mazda CX 9, the music will automatically start playing from my itunes playlist while I'm still talking to someone. The caller on the phone can't hear it, but it is very annoying to me because it drowns out the conversation. Has this happened to anyone else? Is there a fix for this? I have an iPhone 5 and the USB chord is connected as well as bluetooth being enabled.

Reinstall/sync your phone. READ THE OWNER'S MANUAL.