My 08 FX4 compass seems to have a mind of it's own. Sometimes it's fine, and other times it will display "CAL" and never show the direction/temp. I have calibrated it and now my East & West are backwards lol. North & South are fine, but East to West are messed up. I have calibrated it several times and thats when I'm driving it displays "CAL" and the next time I start the truck it will finally display the direction/temp, but 99% of the time East & West are still backwards lol.