Help installing SSD in Auralic Aries G2

I just got a G2 and I have a spare 2.5" 2TB SSD that I'd like to install. I'm not incompetent in these sorts of matters but not a tech wizard either. There's very little detailed guidance about this on the web so I'm wondering if anyone here has done it and can give me the basics? What will I need other than the drive itself? How difficult is it? I have a USB drive attached now and it works just fine so if this is a major operation maybe I'll just skip it. Thanks for any help