Well we get some random stuff for trade ins at the dealership where im a mechanic. I found this tach in the hatch of a riced out civic.. theres a small problem tho, as i looked at it, there are two orange wires, and two brown wires that are cut on the back. i asked at work, and someone said that those are the wires that determine if youre using it for a 4-6 or 8 cylinder application. he said i should be able just to soilder the wires back together and everything should work fine. anyone know this off hand before i go searching for wiring diagrams and have to call auto meter? thanks in advance, pictures to follow.