installing a new programmable thermostat and going from 7 wire configuration to a 5

I have a digital non programmable thermostat. I have 5 wires (yellow, red, white, blue and dark brown) could you tell me where do they I took the old one and didn't pay attention where the blue and dark brown go.) Thank you very much. I hope you can answer this today since it is very cold this...

I just purchase a new Honeywell RTH4300B programmable thermostat for my oil furnace. My old thermostat was a White-Rodgers and was connected with 2 wires; one red and one black. There was no coding on the terminals and everywhere I look they are always talking about a red and a whir wire. I think I...

I'm having a problem installing my new programmable thermostat. The connected wires on the old mercury one are why, Rc, W, B, G. The ones on the new one are G, Rc, Rh, Y/O, W/B, Y1 and I can't figure out where to put them off of the diagram that they sent in the package.

I have a 10 year old Carrier thermostat and want to install a new programmable thermostat. The thermostat has 5 wires (red, yellow, green, blue and white). All of the programmable thermostats only instruct you on how to install with 3 or 4 wires. Does anyone have a suggestion on a...