I'm wanting to put a tac in my truck, a 91 4.3 s-10 blazer. My question is where do I plug in the "coil wire". I call it this because when I pulled the tac off my old truck, that wire went to one of the posts on the coil, It was an old style cylinder type coil. So on my 4.3 engine, where do I tie in the coil wire? To one of the four wires coming off of the coil, and if so which one, or is there somewhere else under the dash? If anyone has done this instalation before please help.
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