Hi I would like to know about quality of Bluetooth communication on your Ottonavis is it normal or my device has some problems?? Most of times people on other side complain about noise during phone conversation. Almost impossible talk with opened windows And if I switch bluetooth from Ottonavi to Iphone, Ottonavi make loud noise like white noise (I replaced original microphone with microphones from ottonavi, G2, MCU V9.02, UI Shell: 2.78.10)