Tach wont work from aux? (e6k)
 

So during my rewire I decided to take my tach signal form the haltech instead of my msd box. Took the green wire from my automeeter tach routed it to the green/blackstripe (aux out) turned on aux1 to tacho output under inputs outputs and NADA, car runs fine, just no tach now

done with haltech connected....

WHat am i missing?

Did you ever figure out your problem? There is a easy way to wire it.