Question about 2008 GMC Yukon
Need to find a 12v that goes off with the ignition off to hook up my Escort Radar Detector. In past vehicles I have used the fuse box but they all seem hot all the time. Anything in the mirror/moon roof area that is 12v and switched? Thanks
Does your cigar lighter stay live whe the ignition is off ?
Buy a cheap 12v tester with a pointed tip put the crocodile clip on a bare piece of the bodywork and test look at the wires coming away from the ignition switch, there will be a heavy cable in Red or Brown which is the supply from the battery
One of the other cables will carry the ingnition supply while the engine is running as there will only be around 10 wires it is no big deal to test that out as you just stick the point through the insualtion which closes up when you remove the probe
Once you have found the Ignition wire use a Scotchlock to break into the circuit to give you your live supply and put the ground lead to the earth post which will be near the steering column.
I am assuming that your radar scanner has an in-line fuse built into the wiring they supply if not invest in one
Posted on Jun 02, 2009
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Posted on Jan 02, 2017
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