1999 Crown Vic OUTSIDE Temp sensor

[LieutenantCracker]

Where is the sensor for the "Outside Temperature" reading on a 1999 Crown Vic' / Merc Grand Marquis; & a brief description of how it works i.e. how it's insulated, etc... If you've got the time to explain (aside that it's OBVIOUSLY a thermometer, of some sort).
I've found, by cross-referencing several thermomiters, that the "Outside Temperature" reading on the climate control's digital display consistently shows 3-4 degrees higher than the thermometers' readings; regardless of whether the car's moving, or not.
Obviously, not a big deal, by any means. . . . . Just curious as-to why that is-- one might imagine that the location of the cars' sensor is close to the engine, or something else that's relatively hot.
________
Hardcore

[Blue)(Fusion]

I had to look this up just last week because I noticed my OAT sensor was beginning to show inconsistent temperatures. It would act normal then randomly at cruising speed it would start to climb in temperature to 40+ degrees above actual temperature. I just today sprayed it down with some electric parts cleaner to see if that will make a difference and so far so good.

But it is located just in front of the radiator. Remove the black plastic cover over the radiator (held on my 3 plastic tabs, just twist and remove). Look down just to the drivers-side of center. You will see what looks like just a little piece of metal sticking up on through a plastic holder on the metal brace a few inches in front of the radiator. Besides these past few days, I found it to be quite accurate when in motion and standing still. Below is the image the other person gave to me (ignore what is crossed out).



As for how it works, it is a thermistor - it conducts electricity differently based on it's temperature. The hotter it is, the more electrically conductive it is, therefore more voltages passes through, which tells the EATC the outside temperature is so-and-so degrees.