Music server

A quick google for the manual says there is a  RESTORE & UPDATE DVD. So, Cary should step up and give it to you.
If they don't, I would definitely post your experience.
Other than that, I would do what elberoth2 suggested or build your own server. I built mine fairly easily on a Windows PC, perhaps not the best, but it works for me.

elberoth2, I believe it is 12 volt, but don't quote me.

2channel, I built a micro PC for my digital music. It runs Win10 and I have J River and a bunch of streaming music apps.
For a monitor, I bought a used Lenovo Thinkvision monitor(LT1423p). It works great. They made a wireless version, too, so you can control the PC remotely.-I wish I got that one.
HTH 
Bob

Yeah johnziomas, I could have used my android, but I really need a larger screen as my eyes aren't what they used to be. I have to say that Lenovo  monitor is pretty nice-great resolution and easy to use touchscreen.