Pinouts for Renault Scenic?

Hi, I have removed the Radiosat4000 radio I had in my Scenic, and intended to replace it with a Renault Tuner list CD player from Ebay. The two main connectors plug in fine but the third connector that is needed for the steering column control and the display is a long thing connector. Whereas the socket on the CD player is different. Can you advise on the pinouts so I can connect the pins to the individual wires. Thanks