DIY Cruise Control on 07-08 Yaris (step by step)

[Kasbien]

So I read through the entire thread but didn't find a solution my issue (some similar cases but no resolution).

I have an 07 sedan, auto transmission, Canadian car. I went to perform this mod today, only to find that I have a factory wire (pin 40) at the ECM connection but no wire at the D3 connection under the steering wheel. No CC lights in the cluster either. Car has been dealer serviced since day 1.

Anyone else figured this one out?

EDIT:
Found the solution in another thread. The pin 40 wire seizes to exist after the firewall connection (AD4) on the drive side of the vehicle. Weird! See attached photo. Hope this helps someone out because it sure as hell gave me headache.