![My current thermostat does not a C wire connected to it but the incoming bunch has an extra blue wire that is not connected in both ends. Is it ok if I My current thermostat does not a C wire connected to it but the incoming bunch has an extra blue wire that is not connected in both ends. Is it ok if I](https://preview.redd.it/5z9gpb4fd9471.jpg?width=640&crop=smart&auto=webp&s=7fcfdf1e7ab97d4dd506125d72ebf3785217b8c9)
My current thermostat does not a C wire connected to it but the incoming bunch has an extra blue wire that is not connected in both ends. Is it ok if I
![Arcade Button and Switch Quick-Connect Wires - 0.187 (10-pack) : ID 3835 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits Arcade Button and Switch Quick-Connect Wires - 0.187 (10-pack) : ID 3835 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/3835-02.jpg)
Arcade Button and Switch Quick-Connect Wires - 0.187 (10-pack) : ID 3835 : $4.95 : Adafruit Industries, Unique & fun DIY electronics and kits
![connector - Can I connect three wires using a screw terminal? - Electrical Engineering Stack Exchange connector - Can I connect three wires using a screw terminal? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/TIHswm.png)