Hive installation

[Firebat87]

Hi guys. We just bought a new build house and wanting to fit an hive active heating system in.
But we got a bit stuck due to the amount of wires there are in the current thermostat. (There not as many as I think we need)

Boiler is logic combi esp1 30
And thermostat is danfoss tp5000

Any ideas?
https://goo.gl/images/yXSZQV

 

[Firebat87]

I found the grey cable at the thermostat was tucked behind with a earth cable. I'll have a look at the bolier later on.