Multi Function Display

[mikeB]

My 2005 M59 Multispace has, like all of them I think, a multi function display. I think this is a fairly simple one line display which shows time, date, and various messages like "Door open" etc. My Citroen Picasso has a similar display but has more functions including a fuel consumption, mileage display. I very much appreciate this on the Picasso. Does anyone know if this is achievable on the M59? Wires to the M59 unit are just 5 in number. Solid Orange and Solid Blue twisted together, Yellow T35 XE4, Green with yellow stripe T35 M7215, and Beige T02 B118. 5 Wires doesn't seem enough but with multiplexing, who knows. I hope some genius out there does!