I just moved into a house (renting) and noticed the 24volt wiring for the trane a/c is not wired up. Would anyone know the correct terminals to connect the wires, red, white and green? I am assuming the red may go to the Y terminal and the white to the O, is green the ground? Or do I have that all backwards?

Yes,, you have it all backwards,, we need to no the model numbers of the h/cooling system,the name on numbers off the tstat,, but if there is a chance of you making a mistake and causing even more damage,I believe I would let the landlord get it taken care of, its his responsibility,, and his expense if you was to blow something up

I had the same question about a ford tempo earlier and did not get a reply.