Hi I bought a new thermostat I have 4 wires that need to be connected but I am not getting a connection. I have 2 green 1 red 1 white and a relay that I think the red cord needs to be connected to. Can anyone help?

You'll have to desribe what your trying to do;

1. model of old stat
2. model of new stat
3. Colors and terminal markings on old stat.
4. New terminals available