[gunnmen01]

I attached the tach to the cover over my guage cluster, i ran the wires down inside the dash to the fuse box for power and illum. and the rpm i attached directly to the connector on the back of the cluster that would normaly feed the tach on an si.It's the left side connector like 2nd wire from the left, i think it was a blue wire. Check your haynes manual it should tell you which wire.

hope this helps.....gunnmen01