You need the whole cic system screen head unit and mew cable between them and the new head unit needs an emulator harness to allow it to work in the car.
Figure on spending in the 2k range to make it all work.
2008 E93 335i, MHD, HPF IC, Injen Intake, AR DPs, Alpina TCU Flash
2016 X5 M-sport 35i JB Stage 1
2013 Mercedes C63 AMG, ROW airboxes, power pipe, Eurocharged V6 Flame tune 540 HP