Did you get the temperature sensor that mounts near the grill? If the truck didn't come with the console, it will not have the sensor installed. It mounts behind a little black shield, but I believe the wiring will be there.
Also, you need to calibrate the compass. That is done by going to a large parking lot where you can drive around in a circle about 4 or 5 times. Set the compass in calibrate mode and start driving around in a circle until it is calibrated. I believe it will shut off the calibrate mode when it is finished. It has been a long time since I have done it so I don't remember if it shut off automatically or if I just noticed that it was giving the correct magnetic indications and reset it myself.
Good Luck,
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