CX-9/Mazda 3 Aux input into CX-7

[Crush900]

Has anyone figured out how to connect the aux input from a CX-9 or Mazda 3 into a CX-7? I have a 08 CX-7 with tech package. It has a "media" button on the radio/ nav unit. Can you get the harness and input from the dealer and install it? Anyone try it yet. I think I might.....