Thermostat Wiring??
 

My central unit works fine... well it did until I touched it! lol.

I was upgrading to a digital tstat and noticed that the heat-off-cool selector switch was broken.

I opted to put my old one back on for the time being. Now I can't get the unit to come back on.

Would you please let me know the correct way to wire the thermostat??

Here's the current wiring:

red R
blue X2
yellow Y
green G
brown T
black B
orange O
white W

It's a Trane with aux heat.

x2 = black
B= blue

maybe?