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You are correct. Facing the rear of the mobilizer control, on the upper right is a screw that has both ground wires attached. One ground wire goes into the wiring harness and on to somewhere else. The second ground wire, the short ~6 inch ground wire, exits out the left side of the mounting bracket near the bottom of the bracket and is attached to the dash panel steel with a bolt. If you need photos, I can take a photo for you tomorrow.That's good insight. Thank you. One more question...When I disconnected the ctis cm there's 2 ground wires that screw into the back side of the terminal. One ground comes from somewhere in the truck. The other ground wire is about 6 inches long and is just independent/ by itself. I forgot the configuration when I went to put it back together. Does the independent wire attach to the same terminal on the back side of the cm as the ground wire coming from the truck?