The groaning noise would be transmitted to the front via the propeller shaft.
There was a TSB on the problem and maybe you could check with your local Honda dealer if it is a warranty problem.
If it is the front that is causing the nopise, you would need to check if the brake backing plate is too near the brake rotors. They would be brushing during turns causing the noise.
Sunday, July 5th, 2009 AT 11:59 AM