Hello I'm trying to replace my old old rheem termostat with 10 wires . Blue green yellow orange purple white black brown red grey. Now the probleme is I have some wires then I don t know where there are going . Does any one can help me thank you

You need to tell us what type of heat and AC you have. You also need to tell us which stat you bought. 5 wires is what's needed for most applications, many get along with 4