The 700 series control heads are a special CanBus and not NMEA 2000. You can NOT connect your TZT2 to that. You would connect the TZT2 via NMEA 2000 which your pilot should also connect to. (The pilot NMEA 2000 connection port to the bus is TB11) You must have a bus with proper power and terminations for the items to communicate on the bus. Alternately, you could use 0183 to drive the pilot from the TZT2 instead of NMEA 2000. NMEA 2000 works better because it allows the TZT2 display to also access heading from the PG700 compass also on the 2000 bus.