Found the noise
Now to silence it.The noise is coming off the dryer which mounts to the compressor in an area 1/2 inch wide x 6.5 inch long.
The noise is right in the center of the dryer which is clamped to the compressor with a stainless steel clamp.The compressor housing may be enhancing it.I isolated the area with cardboard and used Goodyear ac high pressure hose to listen to it.
The squeal is continuous,I'll post back on the fix
