Previous owner had fitted a single DIN stereo, so looking to return to standard Citroen Stereo and Multidisc. (which I happened to have in the spare car, dont ask
Three multi plugs, but the third one is different.
Main two fit without issue, and now have working radio/CD etc, but cannot control via Steering wheel as different plug.
Old Plug appears to have three wires, and new plug has four and is a totally different fit/design.
Was hoping I might be able to remove and then "rewire" old plug, so that the functionality works in the new vehicle.
Poor quality phone pics below so you get the idea.
Old connection that works: (3 wires)

New connection that does not fit. (4 wires)

Thanks again
- Dave -
Pu