I bought a 1981 F-150 Ranger 302 automatic, and everything works on the truck except for the cruise control. I put it on 60 MPH, turned it on and punched it to set it, but it doesn't set. I checked all the fuses. What else should I check? Thanks in advance. In addition, the driver's side electric window does not work, but the passenger side does, and that is from the driver's side button. So, I am assuming the button is OK, but maybe the driver's side motor is shot?