Wiring problems for a defi vsd hud!

[Avante]

So, im having a bunch of trouble. i cant find a pinout diagram for the s14 sr zenki ecu.

i need to connect the hud to the speedo wire, which i cannot find.

i searched, but all the threads gave me info i already know, and they post stuff like "oh, yeah after i figured it out, it was totally easy!", with no pics or diagrams to show what they were talking about.

i know the old rule of thumb is that the speedo is yellow/green. but i tapped, and i got nothing.

if anyone has a wiring pinout from the ecu, it would be greatly appreciated, or if anyone has had experience with this, please help me out!

thanks!

:3