garmin Blue tooth capabilities

Bluetooth Compatibility with Phonak B 90 hearing aid with Com Pilot.

I just bought the above hearing aid so that I could hear the GPS directions, via blue tooth in my hearing aid. i drive a motorcycle on loooong cross country rides,( around the USA)and am deaf in one ear a 1/2 deaf in my good ear. I had the Phonak / direct and discovered that it could not communicate with the GPS and that I would need the B 90 unit and the Com Pilot ( wear around neck) to communicate with anything besides I phone... Can anyone verify if I can get the hearing aid to allow me to hear the Garmin instructions ?

Thanks

Joebiplane@comcast.net