I'm hooking up a tach and need to know where the ignition switch wire is and what color that way the tach will come on with the ignitions.

I've found the blue tach signal wire in the back of the cluster, i'll just tap into it for the tach signal.

I also need to know what headlight dimmer wire I need to use to make the backlight of the tach dim w/ the dash lights. I am looking at a red/wht a red/blu/ and a red/grn wire in the Back of this switch here in the bottom left of the picture (Not my dash btw)


Thanks.

 

Nevermind....I found what I needed....just found a fuse that was hot, but not labled on the fuse panel....