CDL3 to M400 communications

I have the M400 sending info to the CDL3 dash without any issues.
How to get the CDL3 to send its data (eg gear, lat and long accelerations, oil pressure) to the M400?
Has someone got the precise set-up to do this? I am a bit lost with the set-up details.
Thank you
How to get the CDL3 to send its data (eg gear, lat and long accelerations, oil pressure) to the M400?
Has someone got the precise set-up to do this? I am a bit lost with the set-up details.
Thank you