Just decided to order the system today. I ended up just ordering the base radio system without any of the additional stuff. The base radio includes Carplay/Android Auto, screen mirroring via WiFi, and retains all factory items like cameras, steering controls, etc. It doesn't mention that it retains any CD/DVD functionality, but I'll be curious to see once the system shows up.
I didn't order the dash camera, TV tuner, panoramic camera, or the TPMS stuff. From the reviews I read the stuff is somewhat low quality. Also, I have zero use for TV these days, and the vehicle already has TPMS warning which is all I need. The pano camera setup would be cool, but I don't feel like I could trust it at all. I've done pano camera work and calibrating at the dealership with Audi vehicles, and I'm not sure how they could begin to offer that system for 250 dollars. Reviews said the dash camera quality was pretty cheap as well.
Ill update this after I get it all installed. Hoping it works well so I can install it into my Flex as well.