Can this one be re-calibrated? I am thinking of modding one from an explorer overhead console into my dash some where possibly near the hazard button/switchThe first mod I did on my ZX5 was to install an auto-dimming compass mirror [came off a junk-yard Sentra). This same mirror can be gotten with a temperature display and a compass. Fortunately I was able to use the stock Focus mount on the windshield. If you buy one new, they're not cheap however, but they work nice.