I have a 2016 Equinox LTZ AWD, and the steering wheel walks/vibrates at higher speeds (73+) that can also be felt in the driver and passenger floor. The faster I go, the worse it gets. I have purchased new tires, checked the balance multiple times, and aligned the front end. The strange thing is that, at times, the vibration will stop but inevitably start up again while maintaining a constant speed with cruise control. I'm thinking CV axle. Any thoughts on this issue is appreciated.