I will get some pics and a write up emailed to you. They may span a couple of messages, so they can download quicker.
The temp display I am referring to is the one in the overhead console that measures outside (ambient) temp. I think it was in all models except the base model (and I may not be correct on that).
flashbk2 was referring to a mechanical water temp gauge that the sensor wasn't installed in the water jacket, but left coiled inside the engine compartment. Apparently the suction of the air over the sensor as it enters the air box makes a difference in the temp, and is probably a more accurate indication od the actual air entering the turbo. Still, the actual compression of the air in the turbo creates heat, and the charge air cooling system does it's best to cool it back off.
Ideally, a virtual gague from a data logger connected to a laptop would give the closest actual temp of the air at the throttle body. Then, it is the discresion of the author of the software whether the output is reported as a voltage, resistance, 1 to 10 scale, or actually converted to a temperature reading that could have real world usefullness outside the data logger's operating environment..
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