before I rip the dash open and reconnect my original tachometer... can someone give me some pointers ? i.e. which wires from the ECU need to be connected to the back of the dash etc .... OR even if this can be done ? i.e. digital signal from the ECU to the old dash ... ?
FYI
I removed the old monster tacho and there were 3 wires from the Microtech ECU
a black/yellow (ground)
blue/white (signal)
white/red (power)