I recently purchased this 2007 Civic LX Coupe. 90,000 miles. Oddly enough when driving there is a constant rumble, which does not seem to go up or down with speed increases. Tires are cupped pretty bad, but I don't think this is the sound as it would speed up or down.
Left CV Axle has been replaced
Left front & rear Wheel Bearings replaced

Seems like this rumble may be coming from where the CV Axle goes into transmission.

Any Ideas? this is driving my crazy!

This is an LX not EX, sorry