Hi
I recently purchased some used Greddy gauges and they came with the SMI control box. I've managed to figure out the guage side for installation but I need some help as to where to wire the control box up for power ( positive etc.. ) . The guages came with no installation instructions

Can anyone help me with where to wire in the wires highlighted in the pic below? or maybe somewhere I can find instructions for the SMI install?

cheers
Krisso

 

the black wire is for ground.

I am not sure what the other wires are for, but my GUESS would be, red is constant power, orange is illumination and white is switched power.

 

Have you checked the Greddy site? http://www.greddy.com/tech/

 

On the Greddy site is nothing about the SMI Series. I search a manual for them, too