Like baldy said, often the t-stat has a common terminal for Y + G. This is most common on the older t-stats. It'll take someone on scene who knows wiring to get it right and it may require more controls than what you already have. Or not, depending on different wiring options.
If YOU want change, YOU have to first change.
If you are waiting for the 'other guy' to change first, just remember, you're the 'other guy's' other guy. To continue to expect real change when you keep acting the same way as always, is folly. Won't happen. Real change will only happen when a majority of the people change the way they vote!