This has to be the single most idiot proof mod anyone can perform. I can't believe the cx, which has no tach, is already wired for one. That only raises more questions about why Honda didn't put one in there to begin with. >: /
It's in there. I painted the inner bezel. I know that's a little ricey, but haven't you seen my engine already? I still have the donor cluster so if I don't like it, I can change it back. I swapped the speedometers so I have my original odometer and everything. That is the second most idiot proof mod. Every light on it works, but most importantly, I have a tach now. It's marked for a 6000 rpm red-line and I painted black over it to 6800 which is what mine is.
Thanks for all the help, guys! Especially the tip on that hazzard screw. This took only an hour including paint, swapping gauges, and swapping clusters. I only needed a phillips head and a small flat head. Everyone should do this if they don't have a tach.