acc power in 2008 silverado

Printed From: the12volt.com
Forum Name: Mobile Video, GPS, and Navigation
Forum Discription: Mobile Video Head Units, DVD Players, LCD and TFT Monitors, Navigation, GPS, PS2, PS3, XBox, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=116265
Printed Date: May 02, 2024 at 10:54 AM

Topic: acc power in 2008 silverado

Posted By: bfireman231
Subject: acc power in 2008 silverado
Date Posted: September 11, 2009 at 5:05 PM

I have a 2008 silverado, just installed new overhead dvd system. I have the +12v and grnd connected to feed for dome lights that works fine. What I need to know is where and how to get the switched (acc) +12v from. Is there something special I have to buy to get this or should i be abls to get this out of the fuse box.

Replies:

Posted By: yimke
Date Posted: September 12, 2009 at 8:24 AM

Grab it from the ignition switch and fuse it. Rarely you will see an overhead domelight with all of the connections up there.

Posted By: bfireman231
Date Posted: September 12, 2009 at 7:03 PM

What do you mean get it from the ignition

Posted By: sparkie
Date Posted: September 13, 2009 at 2:56 PM

Don't get it from the ignition harness as this will cause major problems with your truck. On the driver's side of the firewall, just beside your parking brake you will see a large junction panel with a cover over it. Remove the cover. Behind the cover you will see a number of plugs and cavities for missing plugs. The cavity 2nd from the bottom on the left side of the junction block, you will find a few terminals. One of these is a switched ignition source, one battery and one ground. Use a volt meter to check which is which. This is where you should get power from. The ignition harness is only for the BCM to determine what power mode the key is in. It is not capable of powering any device directly. Doing so will really screw up your truck.

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sparky

Posted By: bfireman231
Date Posted: September 13, 2009 at 7:05 PM

Thanks I'll have to check it out and try.