Yaris 2019 Sedan EM Plus cruise control installation

[eth]

Hello,

I have a 2019 Sedan "EM Plus" version. Originally purchased without cruise control.

I've noticed that there is a cruise control disabled light on the dashboard and the steering wheel had a hatch for the cruise control add-on. So I came to a conclusion that I could buy the stick off Aliexpress and just hook it up myself - which I did in less than 5 minutes, there was a connection port behind the airbag.

However, pressing on the stick didn't have any effect. I took the car to a local thai technician and he said that the ECU for this model didn't support cruise control.

Since I'm in Thailand, and it's very hard to speak with local technicians, can somebody with the same problem guide me into the right direction?

Would it be hard to upgrade the ECU to support cruise control?

Thank you!