I need a little help. I need to locate a "keyed" acc/ignition source wire above the small overhead console with the reading lights and the airbag light in my 2007 Yukon. I have mounted a trailer tire pressure monitor there and wired the 12v to those lights 12v power, but the computer is so sensitive that it keeps the nav unit running as it must think the doors are being opened while the monitor is rotating thru the tire locations and displaying the pressures. Shawn or anybody know which wire would give 12v when the vehicle is running only?
Thanks for any help.
Gene

 

Never mind, I ended up just running wires up and under the headliner, down the a-piller and into the passenger side power panel, works great now.

 

that spot, and on the drivers side are the only place for ignition or accessory power.

 

Thanks Shawn, I thought so, that is why I went ahead and placed it there.