I actually already ordered this guy up along with the VW Harness order from Amazon:
https://www.amazon.com/gp/product/B007D6GGZC/
Pretty sure that's everything I'll need hardware-wise (along with the mounting kit of course).
With the iDatalink Maestro ADS-MRR... from everything I'm seeing, I'm assuming I'm going to have to Flash the unit for my specific vehicle upon opening?
Connect to Windows-based computer via USB, visit http://maestro.idatalink.com/ -> follow "Flash your Module" link, fill in Vehicle specifics, and then Flash directly from webpage?
Not sure if that Web-based Flashing utility is Java or Flash-based... Chrome has fits running active content like that kind of stuff in the latest versions. I suppose I'll see how that works out once I get there :)