I purchased a hunter thermostat to replace my old one. Out of the wall there is 5 wires (g,r,y,w,b). The previous thermostat only used 4 wires (g,r,y,w). The new thermostat is a 5 wire thermostat and has the following terminals (g,rh,rc,y,w) and it has a jumper that goes from rh to rc. Which wires go to which terminals? Any help is greatly appreciated.