Squeak most noticeable, and constant, when freeway driving 55mph or higher, or by simply by pushing down near the right rear wheel. From underneath, squeak seems to originate from under right rear door, in front of rear wheel.
3 shops have not solved issue. One covered part of gas tank with some kind of adhesive backed foam, theory was tank rubbing against something. Another thought shock was making noise, but replacing shocks and mounts changed nothing. I also had both rear lateral arms (dog bones) and knuckles replaced due to wear, also didn’t stop squeak. Car handles fine. Any ideas appreciated.