My Husband, Sweet As He Is, Tried To Replace Our Weathertroh Thermostat With A Digital From Walmart... yeah, I Know... he Didn't Label The Wires As He Removed The Old Thermostat And Now Even When Following The Diagram For The New Thermostat We Cannot Seem To Get It Installed... I Have No Ac And Am Losing My Patience!! how Do I Find Out What Wire Goes To What To At Least Hook Up The Old One For Some Ac?