[quote author=Mazda3 of NH link=topic=56575.msg961869#msg961869 date=1158644593]
FYI - if you wire directly into the maplight your Radar Detector will always be on (even if the car is off) unless it has an auto shut off feature. The Map lights are wired so that the light work even if the car is off, therefor the wires are "hot" (electricity going throught them) even when the car is off. If you don't want to risk draining your battery i suggest you NOT wire directly into your maplight. Go with using the wires from the cig lighter or other eletrical things that shut off when the car is shut off.
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Ah, yes. If you look at the harness of those who have moonroofs, you'll see several wires coming from it. Of these wires, each a different color, the black one is the one to splice from. Many people have routed power from the black wire which is powered when the ignition is set to ON (Why Mazda has a black wire as hot is beyond me). This black wire is the lead that enables the moonroof switches to be operated. The moonroof cannot be operated without the ignition being in the ON position, which makes it safe to splice from. Without that moonroof, you have 24/7 juice in those leads.
I really don't know what to tell ya. I understand the want to install the detector near your visor or rear-view, but you may just have to do the cigarette lighter route.