outside temp sensor is required for the heating/ac system, compass is integral to the 5 button dic, oil life is a sythetic PID generated by the PCM based on engine runtime/conditions, trans temp is integral to the trans/pcm, all this data is requested and transmitted between computers via the databus which on an 06 is a CANbus where an 04/05 is serial and canbuss (transition years)
just get a bigger dic, it'll solve all yer problems