One of these, mounted on the window above the driver's side air vent:
The power cable is tucked into the steering column surround and goes down to a USB/Bluetooth dongle in the cigarette lighter. I use the phone for everything - nav, phone, music etc. Luckily my car is flimper spec.

The power cable is tucked into the steering column surround and goes down to a USB/Bluetooth dongle in the cigarette lighter. I use the phone for everything - nav, phone, music etc. Luckily my car is flimper spec.