PM sent with the link to the image.
For instructions, see
Memory Upgrade Mod Guide. They are for the Glo, but the basic steps and tools are the same. The links to the tools are out of date, but go to the right site. The download links are under "Support" (from memory).
I don't have an Aura HD, so I don't know how to open one. There were instructions posted shortly after the device came out, so a search should find them.