09' tach wire different? [pic]

[Taiyaki]

So I ran into a problem with my tach installation. So i hooked up my orange wire(tach) to the green/blue wire on the far left. But I dont get any reading.

here is a pic of what wire I hooked it up to.



Also I hooked up the rest of the wires to my deck, but seems like the backlight stays on all the time. I hooked up the red(tach) to red(deck), white(tach) to yellow (deck), and well the black went to the ground. Did I mix up the wires?