i have installed the motorola ihf 1000 blue tooth system in my x3. the control boxes for the system are hidden under the ash tray, the speaker is mounted on the dead pedal (does not get in the way when using the clutch) and the mic, i ran up to the sun roof control panel. there is a small 5 button control that i have on the dash near where nav screen would be(i just have the storage compartment) you can have this system installed but it isnt all that painful.