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Running wiring thru Firewall.

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I have the Plow Prep Pkg. on my '04 2500HD....is there a Rubber Plug or something on the Firewall to run wiring thru, or do I need to drill ?...Thanks

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BEER.............This is the pic your looking for. GM quit pre drilling

the hole in 04 or so. There should already be a dimple there to

guide you. Be sure to check both inside and out to be sure your

drilling in the right spot !!!!!!!!


Wanna know where the beacon light wires are and how to find


PIC: http://www.plowsite.com/showpost.php?p=164376&postcount=8

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I don't see any "Dimples" in the pictures, but do see a couple of "Rubber grommets" I can use. Actually, I'm looking to run a CB Antennea Cable.

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RICK.................Go out and actually LOOK at the firewall of

your truck! You should see a dimple in the firewall. You can't

really "see" the dimple in that pic. but it gives you a good idea

of where to drill.


Running your CB wire thru the existing wiring/grommet holes

will only end up with water and noise leaks.

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