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How To Install Floor Lighting GMT-900

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How To Install Floor Lighting GMT-900

Postby BlackZ71SilveradoBlackZ71Silverado is online! [OP] » Sep 16 2015, 8:43am

Since GM no longer provides floor lighting, we have to do this on our own. With people asking questions lately, here is a quick "how to"......

Start off by finding an area where you want your lights. I ran my passanger side LED strip on the bottom of my glovebox.....Run your passanger side light wires over to the driver side behind the lower dash plastic. Be sure to leave yourself plenty of wire to work with later.

You need to remove the black plastic cover that covers the distribution block on the driver side firewall.
See below pic.
image.jpg


Once the cover is removed, you want to unplug the BLACK harness. Unplugging the needed harness makes it much easier to splice into and gives you plenty of room to work.
See below pic.
image.jpg


The wire needed to give you power and to control your chosen floor lighting with the interior dome lighting is GRAY. There are two gray wires, either will work so it doesn't matter which wire you tap into. Connect your positive wires from your lighting together and splice them into either GRAY wire from the BLACK harness you unplugged earlier.
See below pic.
image.jpg


After you have your positive lighting wires spliced into the GRAY wire from the BLACK harness, you want to connect your ground. Connect both negative wires from your lights together and ground them to a firewall stud....
See below pic.
image.jpg

I used the bolt that is attached to the gas pedal, it was closest and easiest.

You can now attach your driver side lighting in the location of your choice. Zip tied with other wires works well.
See below pic.
image.jpg

Don't forget to replace the black distribution block cover when you are finished and turn your dome light switch back on.

My finished product!
image.jpg
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Re: How To Install Floor Lighting GMT-900

Postby semicrazy » Sep 20 2015, 2:19pm

Very nice write up. I did this mod and love it. Just need to put two more strips under the front seats to light up the back.
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Re: How To Install Floor Lighting GMT-900

Postby richiessr06 » Sep 30 2015, 1:02am

Thank you for an excellent "how to". Very well done.
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Re: How To Install Floor Lighting GMT-900

Postby POWDER007 » Oct 02 2015, 2:58pm

Great write up! I will surely get this going. will a fuse be needed?
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Re: How To Install Floor Lighting GMT-900

Postby intheburbs » Oct 02 2015, 10:29pm

POWDER007 wrote:Great write up! I will surely get this going. will a fuse be needed?


I was thinking the same thing. I would expect that the gray wires are already fused - the question is, if you blow the fuse, where is it?

Nice writeup. Thanks.
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Re: How To Install Floor Lighting GMT-900

Postby LowJ » Oct 03 2015, 4:16pm

Always a good idea to fuse any added electrical components just to be safe.
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Re: How To Install Floor Lighting GMT-900

Postby dav2no1 » Oct 03 2015, 6:01pm

The draw of these type LED strips is very minimal, I'm guessing around 1 watt or less.
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Re: How To Install Floor Lighting GMT-900

Postby texas4x4sierra » Oct 07 2015, 3:45pm

awesome I was just about to do this in my 2012 sierra
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Re: How To Install Floor Lighting GMT-900

Postby POWDER007 » Oct 29 2015, 1:09am

Just installed this MOD today! Thanks for info.
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Re: How To Install Floor Lighting GMT-900

Postby esox07 » Oct 29 2015, 1:17am

I will have to keep this one bookmarked for next spring unless it warms back up before Fall is over. I think doing the back would be great as well.

Just a clarification though. What kind of lights did you use? And to be sure, these lights will come on and go off with the dome lights, correct?
Thank you for the How To.
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