Topic: Fan noise
There are several issues with the PARROT RKi8400 but most of them can be fixed via software update.
However, there is one issue that really makes this unit unusable - its fan noise.
There is an internal fan in the unit that causes a high pitch hissing sound (much like a mosquito).
When the background noise is silent (for example, when the car is not driving, or the windows are closed or in between songs) this sound is present and can drive me crazy.
Before buying the unit, make sure you can withstand this kind of ambient noise.