Tachometer installation help

I`ve got a 93 daihatsu charade, and I`m trying to install a tachometer, I know where the red, black and white wires go; but have no idea where the green wire goes, does anyone know the location of the ECU terminal or the ignition coil?? thanks

the coil is the cilinder that should be mounted to the fire wall, it has a larg wire coming out of it going to the center of the distrubutor, if you remove that wire and boot from the coil there should be 2 small posts on either side of the large center post and one is + and one is -, the tachomiter will connect to the - and you will have to look at the installation instructions to see which color wire it is. from the looks of it it will be the green.

mmmm, choclolate.

Yeah, finally I`ve installed the tach myself, and all is working fine. Just saved myself from spending $65 on installation costs hahaha....

great, saving money is always good