Help diagnose odd sound coming from the engine

[stoolin]

I've got a 2004 Vibe 1.8
270,000 km

I've recently developed an odd engine noise that I can't quite diagnose.

The noise only shows up while driving and only begins with speeds over 20-25km. The best way to describe the noise is a whining sounds, like a vibrating tensioned rope and the faster the car goes the higher pitched the sound. In park I can rev the engine pretty hard but the sound does not appear, also no sound in N while revving.

From what I can determine it's coming from the passenger side of the car.
Any thoughts?

[Caretaker]

1. Constant Velocity boot has possibly cracked and leaked all its grease. Any grease visible underneath or in the wheel well. Do you get a grinding noise when turning the steering wheel FULLY to the left and to the right, like in a parking lot?
2. one of your tie rods is possibly worn.