My camaro is a 68 rs/ss. It came factory with a console, no gauges, and no tach. I am installing the tic toc tach, so I ordered it up, bought the correct circuit board, but I am wondering that since my car never had the option, is my wiring harness still gonna be plug and play with the new circuit board? It seems like it would not be wired correctly. Any help would be appreciated, thanks guys.