Tachometer light

I just bought a tach for my 95 civic dx, I got the green wire to the tach diagnostics wire like the instructions said. I put the power wire into the fuse box and it works fine. Heres my problem, everywhere in the fuse box i try to put the light wire for the tach the light doesnt shut off with the ignition and i dont want to kill my battery. Should i get a switch for the light wire or what? Any help would be greatly appreciated.

Don't put wires in your fuse box unless a piggy back connector is used. Sticking a wire in with a fuse with create a loose intermit. connection.

Tach install - http://www.westworld.com/~joe_r/tach/tachinst.html

Ok, thanks for the tip and the link. Now I see how to put it in the right way. thanks again