Check the 05 owners manual. I was under the impression that you needed 2 working remotes to program a 3rd key/remote on an 05 KJ. So if you only have one working key/remote, I don't think you can do it. Pretty sure that's what it said in my 05 owners manual. (I was thinking of getting a 3rd key for this reason) The 05 might be different than the 03?? You might have to take it to the dealer.
Lifted, Skids, Hooks, Rails, Trail Rash..
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