So I purchased a 64GB Sandisk micro SDXC card back more than a year ago when I took delivery of my car. I loaded it up with music and it has worked fine ever since. When sandisk announced their 128GB version I ordered that one. I loaded it up with music and the Model S just does not see it. I have tried formatting with FAT32 and still no luck. If anybody has any experience with this or any suggestions I would love to hear them Thanks