Noises problem
2005 Acura TSX 4 cyl Front Wheel Drive Automatic 78000 miles

I can't tell which one(s) but, at first the squeal only happened at slow speeds, now it happens at any speed but still more often at slow. It is intermittent, happens 30% of the time at least (but every time when I enter the parking lot where I work. Embarrassing!).
Turning corners has no effect. Braking stops it. My guy, took off all the tires and rinsed the wheels down, that did not work. It is driving me insane! My guy could probably fix it if he knew what it was.
Thanks.