I FINALLY GOT THE NOISE PROBLEM FIXED. I TOOK IT BACK TO THE DEALER, TEST DROVE IT WITH THE LEAD TECHNICIAN AND POINTED OUT THE NOISE IT WAS MAKING. HE WAS ABLE TO DETERMINE THAT IT WAS THE "HUB SEALS" OR "AXLE SEALS" ON THE BACK TIRES. I BELIEVE THEY BOTH ARE THE SAME THING. THEY REPLACED THEM AND I HAVEN'T HAD THE PROBLEM SINCE. I HOPE THIS HELPS.