I have a rather strange issue with the bluetooth on my car. It will connect to my phone fine (Motorola Moto G) and will ring as it should on an incoming call - but the answer or decline button does nothing when pressed. The phone can be answered on the handset and it will use the speakers and all fine, pretty much everything works as it should but the answer button (steering wheel or touchscreen) does nothing. Tried an Alcatel phone and it worked fine. Any ideas?