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Installing new H/U

Posted: Thu Dec 18, 2014 6:12 am
by Drock
I just installed a new h/u, thanks to Mike.
Pioneer nex8000.
There are two wires i need info on to hook up.

First is the reverse/backup lead to turn on the rearview camera.

Second is the speed sensor wire.

My truck is a 2001 gmc sierra 2500hd.

Can anyone tell me what wires im my truck i need to tap into?

I would really like to finish this up today.

Also i am wondering if anyone knows if there is a double din mounting bracket for my truck? I had to do some mods to fit the dd deck so i know its not supposed to fit.


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Re: Installing new H/U

Posted: Thu Dec 18, 2014 7:40 am
by AVICJR
I googled mine and a color coded image pops up. Either google or search a GMC truck forum.

Re: Installing new H/U

Posted: Thu Dec 18, 2014 7:42 am
by AVICJR

Re: Installing new H/U

Posted: Thu Dec 18, 2014 7:55 am
by Drock
Sweet, thank you very much. Ill try that.


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Re: Installing new H/U

Posted: Thu Dec 18, 2014 8:04 am
by ttocs
as always test the wires before you splice into them. The interwebz can be wrong from time to time.

Re: Installing new H/U

Posted: Thu Dec 18, 2014 8:25 am
by Drock
I will. Thanks Scott, at least it gives me an idea where to start.

Still need to find the speed sensor wire.


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Re: Installing new H/U

Posted: Thu Dec 25, 2014 6:26 am
by ttocs
pretty sure it can be found in the engine harness/obd2. Just don't know the color

Re: Installing new H/U

Posted: Thu Dec 25, 2014 8:48 am
by kg1961
Email pioneer they might tell you

Re: Installing new H/U

Posted: Thu Dec 25, 2014 12:33 pm
by ttocs
I can't say I have ever heard of any manufacturer giving out color codes. If you got a response to that email I would be surprised.

I don't have access to info on that specific vehicle but I think can get it from a different resource. Give me a few, and any other wires you need?

Re: Installing new H/U

Posted: Thu Dec 25, 2014 12:54 pm
by ttocs
check your pm's

Re: Installing new H/U

Posted: Thu Dec 25, 2014 6:12 pm
by Drock
All i need is the speed sense wire and backup wire.
Thanks Scott


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Re: Installing new H/U

Posted: Mon Dec 29, 2014 7:36 pm
by vwdude
What do you need the speed wire for? If it's for the nav you don't need it. I just hooked up he gps antenna and it figures it out and it's accurate. Btw I have another model pioneer NEX model.

Re: Installing new H/U

Posted: Tue Dec 30, 2014 6:04 am
by sunshinefc3s
You can pick up the speed wire either at the PCM or at the back of the tach. On my 2002 Ls1 PCM (Camaro S/S harness) IIRC, the wire color was white.
-a

Re: Installing new H/U

Posted: Tue Dec 30, 2014 1:21 pm
by Drock
Thanks guys.
Gps is working fine as is without the speed sense wire hooked up, but I think this wire works with other features like keeping track of milage and efficiency.


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