The most likely cause of the whistling noise is loose or worn weather stripping around the door. If this is the case, the sound heard is the wind.
it would be the CB joint it it's a front wheel drive vehicle with high mileage.
sounds like the brake pads in front or back are worn out, if so need to change them before driving.
Have those two front tires checked out there might be a bulge or a broken belt in the tire.
Worn passenger side front wheel bearings.
Its probably the metal wear indicator on your brake pads squealing to let you know that your pads are almost worn out.
radiator fan.
Lack of lubrication - check ball joints and tie rod ends for wear
the noise coming from this truck is the uv goints
Defective left front wheel bearing. Have this repaired ASAP, as it can cause an accident.
The noise you are hearing is the engine running. If you have not started it yet,then it may be an animal eating your hoses and wiring.
your car just drank red bull