Factory tach wiring

Here's a pic, 67 Cuda, factory wiring in both sides of the bulkhead. Didn't get a pic under the dash, it was cold and dark out there, but this is under the hood. It's the best shot I could get.

It's the grey wire, and looks to be in the "J" spot of the middle bulkhead plug, just as I posted before. Hope this helps!

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