gtsnake Posted April 7, 2017 Share Posted April 7, 2017 Does anyone know of a good place to tap into accessory power to hard wire a radar detector? I tapped a terminal in the fuse box but the power stays on even after a shut the car off so I don't want to drain the battery. Quote Link to comment Share on other sites More sharing options...
drolds1 Posted April 7, 2017 Share Posted April 7, 2017 There are a number of circuits in the 2013+ cars' bcm that you would think are switched but turn out to be "hot" all the time. I have my dashcam connected to fuse#36,using a Add-a-Circuit. That circuit is switched. Quote Link to comment Share on other sites More sharing options...
R2D2 Posted April 8, 2017 Share Posted April 8, 2017 (edited) Wasn't there someone here that tapped the power in the mirror for a radar detector? I found it - look here in posts 4 & 5 to the thread http://lincolnmkzforum.com/topic/1266-14-mkz-hidden-radar-detector-cord/?hl=radar Edited April 8, 2017 by R2D2 Quote Link to comment Share on other sites More sharing options...
ChadPounder Posted February 7, 2021 Share Posted February 7, 2021 Fuse #36 is indeed a winner (mine is a 2018). Switched power, perfect for my radar detector. Fuse tap easy to connect (especially with the awkardly placed fuse box). Interesting how the fuses you think would be switched power are actually constant on? Quote Link to comment Share on other sites More sharing options...
scn101 Posted February 7, 2021 Share Posted February 7, 2021 Quote Link to comment Share on other sites More sharing options...
drolds1 Posted February 7, 2021 Share Posted February 7, 2021 4 hours ago, ChadPounder said: Fuse #36 is indeed a winner (mine is a 2018). Switched power, perfect for my radar detector. Fuse tap easy to connect (especially with the awkardly placed fuse box). Interesting how the fuses you think would be switched power are actually constant on? Yes, that was my impression as well. I was about to give up when I tried #36 as a last resort. These cars are weird, electrically. Quote Link to comment Share on other sites More sharing options...
2013mkz3.7awd Posted April 2, 2023 Share Posted April 2, 2023 I need help I got a Cobra 380 i radar detector. I tried tapping into a not used fuse location like #4 but it doesn’t power in the detector. I also can’t find a a good ground. Quote Link to comment Share on other sites More sharing options...
drolds1 Posted April 5, 2023 Share Posted April 5, 2023 On 4/2/2023 at 1:44 PM, 2013mkz3.7awd said: I need help I got a Cobra 380 i radar detector. I tried tapping into a not used fuse location like #4 but it doesn’t power in the detector. I also can’t find a a good ground. See my post above yours. I've been using #36 to power my dash cams in my last 3 MKZs. The ground is to some random bolt under the IP. Touch your ground wire to several places until you find one that works and that you can reach. Quote Link to comment Share on other sites More sharing options...
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