heater vaccum hose question

[Gregsenne]

I know this question has been asked a million times but Im having problems finding the answer.

I have two vaccum lines dangling below my dash. One is black with a blue stripe, one is black with a tan stripe. Where do they go?

I *think* the blue one goes to the actuator on the other side of the heater box sandwiched against the firewall. Where does the other one go? The defrost actuator by the gas pedal is hooked up, and so is the fresh air actuator on the pass side kickpanel. I don't know of any other actuators inside the truck

Thanks