I have a 17 Acadia limited. Bluetooth always connects automatically, I usually listen to music through my phone. But sometimes, not always (which makes even more frustrating) when I receive a phone call it'll ring over the bluetooth but when I try to answer it won't go over the bluetooth. Even though it shows on my phone screen that it's connected and is going over bluetooth. I've tried clicking back and forth on my phone between bluetooth and the phone but it won't cone through the speakers. I eventually have to turn off bluetooth on my phone and re-pair with the car. Then it'll work fine... until the next time it doesn't. Any recommendations?