How to install a PID XMT-7100 and SSR unit to Saeco Via Venezia

The only guide I found is that one. But I have a Via Venezia.

https://www.instructables.com/Install-PI...

But I still cannot figure out how to connect SSR and PID controller to power.

Also what should I do with disconnected brew thermostat cables?

Edit. I managed to connect it.

The brew sensor cables goes to 1&2 on SSR unit (no polarity)

You will need 2 piggy back connectors and deatach first power on button and then them add 2 cables to 1&2 on Pid unit. (make sure line black cable goes to 1+ positive terminal and grey to - )