That year did not use a IAT sensor, That's why you can't find it.
The IAT sensor is probably on the throttle body and you hook you module to the dianostics connector just under the driver side of the dash.
I found what I think the IAT is located on the 08 xD (I have one). It is in the MAF near the throttle body and is a combination Air Flow Sensor and Air temp assembly. The leftmost 2 wires are connected to the IAT (you can see the thermistor) and on mine, the wires are the green and yellow ones going to the plug assembly. I put a 4.7K resistor across (paralleled) the sensor, and hope to have a better low end performance when I try it tomorrow. The 4.7k resistor should simulate 57 degree incomig air and add more fuel and advance the timing aprox 1.5 degrees (so I read) hope this answers your question Aloha from Hawaii - no 57 degree incoming air here :>)
Swans Crossing - 1992 1-57 was released on: USA: 15 September 1992
Goof Troop - 1992 Goofs of a Feather 1-57 was released on: USA: 1993
The Tonight Show with Jay Leno - 1992 2-57 was released on: USA: 2 April 1993
The Tonight Show with Jay Leno - 1992 10-57 was released on: USA: 11 April 2002
The Tonight Show with Jay Leno - 1992 3-57 was released on: USA: 5 April 1994
The Tonight Show with Jay Leno - 1992 4-57 was released on: USA: 4 December 1995
The Tonight Show with Jay Leno - 1992 9-57 was released on: USA: 28 March 2001
The Tonight Show with Jay Leno - 1992 11-57 was released on: USA: 2 April 2003
The Tonight Show with Jay Leno - 1992 12-57 was released on: USA: 4 April 2004
The Tonight Show with Jay Leno - 1992 13-57 was released on: USA: 29 March 2005