Parrot MULTICOMM For Alfa Romeo Steering Wheel

Parrot MULTICOMM is a unit able to control Parrot H/F kits with the car’s steering wheel commands working with ANALOG STEERING WHEEL COMMANDS with OEM headunit installed.
This unit is available in two versions, one working with the CK3000 Evolution, another for the CK3100.
Compatibility car models :
Alfa Romeo 146
Alfa Romeo 147 : 2004 - 2007
Alfa Romeo 156 : 2004 - 2007
Alfa Romeo GT : 2004 - 2007
Alfa Romeo GTV
Features : Depending on your vehicle's steering wheel controls, there are several possibilities for using a hands-free kit with the steering wheel controls:
-Mode 1: the steering wheel does not feature any phone button, but only volume adjustment controls ("Volume (+)" and "Volume (–)" buttons)
-Mode 2: the steering wheel features a single "Phone" button
-Mode 3: the steering wheel features an "Answer" button and a "Hang up" button
With these Alfa Romeo cars, you can only use Mode 1. It is important to follow the wiring diagram for your vehicle. We would advise our customers to have the interface fitted by a professional.
In this technical document, you will find all information for correctly install your PARROT MULTICOMM interface.
The Parrot MULTICOMM is powered with 12Vdc having negative to the ground.
The Parrot MULTICOMM 14 ways connector has 5 wires that are important for the right working:
Connect the power cable of the Parrot MULTICOMM interface to the 14-way connector of the Parrot MULTICOMM interface.

Source