I have a 2012 suburban ltz and I to hard wire my radar detector. I see on the back of the mirror there is a wiring harness. Can someone tell me which wire is a 12v source and which is a ground.


Thanks

 

When I did mine, I just probed with my DVM. That's the safest way.

 

I thought someone made an actual harness for this? or was that just in my head as a good idea? buy a M/F of the connectors, wire them all up with an extra switched 12v out, and sell it for $40 to people who didn't want to splice up their mirror stuffs...

 

Thank for the reply. Will try that.

 

drop your overhead console and you will have better access to the wire harness... here is a picture of what I tapped to power my dash cam...
it comes on and and goes off with ignition switch... there is also battery power there as well...