I Installed Mono Bluetooth with the objective of being able to route navigation instructions over my Parrot hands free but whenever I activate it my phone more or less freezes, i.e. it becomes really sluggish and my navigation app won't start. It opens (eventually) and then just crashes. I can't even deactivate Mono Bluetooth without switching off the car's ignition which switches off the Parrot. Once the bluetooth connection is broken I can deactivate Mono Bluetooth and everything returns to normal. Has anyone any experience of this app and any suggestions as to what could be the problem as others seem to be able to get it to work just fine.