My dads 19 with the big 12.0 touchscreen radio/ nav etc will loose Bluetooth connection. It doesn’t drop the call, it’s just like you put your phone on mute. You can hear them, they can’t hear you. If you catch it quick enough you can transfer call to phone, from the phone (iPhone) but not reconnect to hands free. Frustrating. Anyone know of an update for radio that Ram has put out?