hookin up a tachometer to my 04 civic si
 

i have a 04 honda civic si..and im stuck on hookin up a tachometer to my car. im use to the older year civics and integras which have distributors, but my 04 civic is distributor-less..has individual coils..i've already ran the power, ground, and back light wires, but im stuck on where to hook up the green wire on my tach..any help will be greatly appreciated..thanks