Anyone using the OEM Charge car dock? It connects through the USB port. The dock itself has a port for the charger and one for the aux cable so you can connect to your stereo and listen to music from your phone through the car speakers. All good and I like it so far. But when you use the phone, it does not play through the speakers and instead defaults to speaker mode on the phone. Shouldn't it play through the car speakers? If you take the cable out of the dock and plug it directly into the headphone port on the phone, both music and phone calls will play through the car speakers. Any thoughts?