This did the trick for me. Just ensure your tech doesn't mount this dangling hose right next to the driveline. If he does, your whine will not go away. Mine is fully gone with proper installation.

TSB: 641805

This TSB addresses the transmission-whine-sounds that come into the cabin while under power. The problem is an evaporator hose that exits next to the transmission. A two-way valve opens whenever the fan runs on the climate control system, thus allowing sounds to be transmitted up the hose and into the cabin. Solution: Install a one-way valve with the part indicated in the TSB.

Best of luck to ya! And welcome to the best X board in the world!!! :welcome: