Trying to install Auto-HUD, which wires?

NIM

Member
:
Mazda3s Hatch
Hey guys, just bought a heads-up-display (HUD) with speed and tach readout for my 3, all I need is to figure out which 2 wires on the dash harness are used for speedometer and tachometer readings. If anyone knows or has access to that information, please help!!

Avery
 
Back