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  1. 01-24-2013, 01:19 PM #1
    03 SIERRA
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    Default oem 5th wheel / gooseneck wiring

    did you know that some 08 and up silverados / sierras have oem 5th wheel / gooseneck wiring? its up under the bed near the fuel tank inlet. i think its only on the vehicles with the complete tow package hitch, tow mirrors, brake controller. just some food for thought. no more butchering the oem harness to get a 7 way in the bed.
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  2. 01-24-2013, 02:35 PM #2
    Crawdaddy
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    That's handy information. I think I've read before that it's tucked up either over the fuel tank as you mentioned or over the spare tire.
    Christopher

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  3. 01-24-2013, 05:58 PM #3
    geo70brem
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    Default 5th wheel harness

    Quote Originally Posted by 03 SIERRA View Post
    did you know that some 08 and up silverados / sierras have oem 5th wheel / gooseneck wiring? its up under the bed near the fuel tank inlet. i think its only on the vehicles with the complete tow package hitch, tow mirrors, brake controller. just some food for thought. no more butchering the oem harness to get a 7 way in the bed.
    I looked for the harness under my 2004 HD and couldn't find it. I was told that if the trailer plug was already at the rear bumper there was not another harness tap under the truck. Anyone else know about this?
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  4. 01-26-2013, 06:59 PM #4
    03 SIERRA
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    im not sure it that came on those trucks. your best bet is to start at the plug and follow the harness back. if you cant find it and you want a low intrusive wiring approch use this, its all plug and play.
    http://www.etrailer.com/Custom-Fit-V...893-11932.html
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  5. 01-27-2013, 05:34 PM #5
    geo70brem
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    Thanks for the advice. I was looking for an aftermarket harness of some sort. This seems to be just what I need. I have moved the factory plug into the bed for my 5th wheel but i still need a plug outside for a boat trailer. I thought there was something out there but couldn't find it.
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  6. 01-29-2013, 09:15 PM #6
    steved
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    Quote Originally Posted by 03 SIERRA View Post
    did you know that some 08 and up silverados / sierras have oem 5th wheel / gooseneck wiring? its up under the bed near the fuel tank inlet. i think its only on the vehicles with the complete tow package hitch, tow mirrors, brake controller. just some food for thought. no more butchering the oem harness to get a 7 way in the bed.

    You will have an extra option on the window sticker for camper/5th wheel wiring @ $25...it isn't part of the basic towing package.
    2012 Silverado 2500HD
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  7. 02-16-2013, 01:10 PM #7
    03 SIERRA
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    Quote Originally Posted by steved View Post
    You will have an extra option on the window sticker for camper/5th wheel wiring @ $25...it isn't part of the basic towing package.
    yeah thats right. there is probably a code in the glove box. i do not know what the code is though.
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