We offer own module for deactivation start stop system on all types of Porsche 911 991 981 718 cayman boxster spyder from model year 2012-2017 ,you get manual and module ,no coding neccassary no diagnostics nothing only connect two wirings and cut one cable easy to do by yourself.Module is with memory function of last stage you can switch OFF forever or switch ON too if you want .After switch ignition ON in car  module automatically choose last stage which you left it (start stop) last time before switch ignition  off.  For more question contact us.