2001 Pontiac Montana After Market Radio Install.?

Question

ok so I bought a new after market radio for my wife's van, and have in the past installed quite a few radios and never came across this problem. I bought the radio the connector dash kit everything to do it correctly, hooked it all up plugged it in and nothing no power. I unplugged it and plugged in the factory worked great, plugged the aftermarket back in nothing. I got a wire tester and tested the plug connector, and discovered the 12v ignition wire was not working, upon further investigation I discovered that I was unable to find a 12v ignition wire at all and only a 12v constant.
Is there something I am missing? Where can I find the 12v ignition or a 12v ignition to use? I hooked up both my 12v ignition and constant off the radio to the constant and everything works great, right sound out of the right speakers, etc, but need that 12v ignition so it will shut off, I will bypass the connector if needed.... 
any help would be great

KaeZoo · Answer

There's no ignition wire in the radio harness of your vehicle because the factory radio is controlled via the data bus system.  You can take off the knee panel under the driver's side dash and connect your radio's accessory power wire to the thick brown wire coming from the key switch.   Another option is to find the thick bundle of wires running to the bottom of the fuse box under the passenger-side dash.   The second-thickest yellow wire in this bundle is a retained accessory power wire, meaning it will stay on after you turn the key off until you open the door.  That's where I like to connect the accessory power source on these vans, but you need a volt meter or test light to find the correct yellow wire.

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2001 Pontiac Montana After Market Radio Install.?

1 Answer