2003 GMC 2500HD Duramax, truck will not start, bought a new battery, truck will not even click over. Listen for fuel pump and it's working. What else is wrong? A couple of days ago, it had to be jumped, this morning it was completely dead. Bought a new battery today, and still nothing. Not even a clicking. What else do I check or what else can it be?

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The only thing I can think that it would probably be is the ignition. Not where you put your key but the box with all the wires going to it under your steering column. Hope this helps. good luck
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