[bcfdtruck3]

Let me check on the wiring, off the top of my head sitting here at the computer, I dont remember, but I do have the directions exactly. Let me get them, give me about a day. Meanwhile, all I used was two sheet metal screws that had a good bite to em, and marked the holes with a pencil when i held the bracket up to the A pillar, drilled out tiny starter holes and inserted the screws. Now, important, ...right behind that plastic post is the metal frame, if the screw is too short it wont hold the tach in place very well, if it is exceptionally too long, well..you get the idea. Use a screw that will adequately cover the thickness of the bracket and give you enough to work with to ensure adequate retention. My screws actually slightly pierce the metal underneath, and it is noticeable (only to me really) by the plasic piece being pushed away slightly from the metal, but if you drill and are careful, using the correct size screw, you will be ok. You can try using fat short screws also. Let me get back to you on the wiring.

There is a box under the hood on the pass side, it is white in color with a metal bracket over it, it is a bi*ch to get off. Once off the wires can be spliced directly into the tach terminals of the car. Your tach should then be accurate with the internal tach on the dashboard. That was just some quick info, I will get back to you in about 24 hours.

Take care