Hi everyone, mods please move this if its in the wrong place :lol:
Just wired up a big rev counter and boost gauge and thought I would post up how I did it, just incase anyone is stuck with it like I was

If you dont have a clock, a really easy way is to use the clock plug. I cut it off which leaves you with..
Red - constant 12v. Yellow - constant 12v. Blue - switched 12v. Black - earth.
If you need to pick up the signal wire (for a tacho) it is the WHITE wire, bottom plug on the AEI unit.
Mark helped me via text with this and Id have struggled otherwise! Hope that it helps someone!

