Designed to fit in the centre console of the vehicle - it simply clicks into place.

Part Number A 171 820 04 51 ( A1718200451 )

You do need the UHI prewired telephone option fitted to your car - connector is normally found in the centre armrest. This unit simply plugs directly into the connector - no cables required. I supply full installation instructions but will help where possible if you get any problems (although I am very sure you won't)

If bought from a Mercedes dealership this would cost over £150.00