Loud wizzing/whistling noise

Leaking Vaccum Line or the intake system has a leak between the air filter housing(air box) and the engine's throttle body, that's usually the culprit!

Check fluid in rearend.

could be any number of things as a noise cannot be described
if it is a whistle sound that would be a vacuum leak because max vacuum is attained during deceleration or taking the foot of the accelerator
the leak could be from a faulty brake booster, vent controls , loose manifold and cracked hoses
other noises can be from broken engine mount rubbers, faulty exhaust mount rubbers, fan over run ( wind noise )
I suggest that you take it to a service dealer or accredited service shop and take the mechanic for a drive and tell him when you hear the noise so that he knows what he is listening for.

sounds like you have an hole where air is blowing past. check for any missing screws or holes. if a mounting brace for any hoses or pipes that run under the vehicle have come loose they could whistle as well. if the noise during deceleration only happens when you brake then it's time for new brake pads.
hope this helps
gord

check for a cracked manifold or cracked flex section at the manifold
it is under load so it is not a vacuum leak as the vacuum is low under acceleration and high under deceleration or idle
indicates a gas leak or possible blockage from failed cat converter

Black the rear wheels, put the car in neutral with the parking brake on, jack up the front end and spin the tires. Once you locate the source of the noise, you can pull the tire off and check the brake pads and rotors.

Check your air intake manifold hose if is crack this cause whistle noise replace the hose.

Id get a mechanic to look at it. Sounds like a rear end bearing problem. Axle bearings pumpkin bearings.