FWIW: Newer versions of the Linux kernel support the POD HD series out of the box. I installed Kernel 4.15 on my Linux Mint Serena laptop following the instructions (and warnings) in the Software Center.
Other distros have their own way to update the kernel, or you can take the safe option and wait for your distro to roll the kernel updates into your normal updates.
Works like a charm (any other soundcard/input).