Cruise Control Install

[proxima]

Hey All,

I have a vacuum cruise control unit I'm trying to install into my GQ RD28.
I currently have the unit in the engine bay with the throttle wire attached, the part I'm stuck at is the wiring.
At the moment I'm not 100% sure how I'm going to tap into the signal wires for the speed and rev sensors.
I just wanted to ask if anyone has done this before, how you went about it, and what issues you might have had.
Any recommendations would be great.

Much appreciated.