Faint Whistle/Whine at 45-55mph

Hey everyone have an interesting little issue that started about 1000 miles ago and sounds like a faint whine coming from the front of the truck that starts around 45 mph and continues till about 55 to 60 mph, it doesn't change with engine speed nor gets louder as the vehicle speed increases- I checked my CVs and they look fine, popped the hood and the idler pulley's are not making any noises. It's not coming from the windshield nor the grill either so just curious if anyone else has similar noises and found out what it is. Truck runs fine otherwise I have the normal "taco tick".. truck currently has 118,000 miles TIA