Sorry, no pictures but I do know that in some Phase 1 N16s the IAT sensor is plugged into the pipe that leads into the air filter box (on the 'dirty air' side of the airbox, not the engine side). In others it's built into the Mass Air Flow Sensor (MAF) which is in the housing connected to the airbox on the engine side.
If you have a phase 1 N16 (2000-2003 version) with a sensor plugged into the feed pipe for the airbox that's your IAT sensor, if not it's in the MAF. (That's assuming you have a phase 1 N16).