I always play music from my phone by using the aux cable in my car stereo but suddenly its stopped working...when I play music through my earphones it works fine and I've plugged in another phone to check if there was something else wrong but the other phone played fine. When I plug my phone in it just plays music through the phone speaker as if nothings plugged in. Is there a setting that somehow got messed up or is my phone just broken? Help please