CF 31 camera mod

Hi all,

I'm looking for a CF 31mk3 service manual. Any model CF 31 service manual will do. I have found a simplified service manual online but it's limited in the part numbers it provides. I want to install the webcam, mic and gps.With GPS clear. On the CF-30 has been input for the internal microphone (CN27) on the CF-31 ??? I would greatly appreciate your help!!