I have a k40 radar detector that I had spliced into my old vehicle so it turns on whenever my vehicle is on. My friend did it in my old car and he has since moved. I am looking to do it myself however have no clue how to. Any help?
well i have done this before. i recommend a inline fuse. i wired mine into the 12v power supply on my 06 ram. i installed a switch, and a 10 amp fuse. if you wire into this 12v power supply it stays on all time. thats why i hooked switch in. i go up into virginia alot from tn and up there radar detectors are illegal. so i can switch it off. its mounted up high so hard to see. you could also wire it in to regular cigarette lighter as long as it dont stay on.
You can tap it in to the power rear mirror supply. Use a meter and figure out which terminals are switched 12VDC and the correct polarity. As for fusing it I wouldnt bother, it draws such a small current its not an issue. Detector would fry long before a 10A fuse blew. Just unhook the detector if your ever getting a boost.