I too am going this route... any gotchas since you've installed the head-unit? Love to see a final install pic man... there isn't much out there installed on a Ram (yet)!
I love the head unit. Talked my buddy into buying the JVC version for his 2019 as well. He got the JVC one because the Kenwood was out of stock locally. They are pretty similar, use the same buttons etc, since JVC and Kenwood are the same company now.
The head unit uses miracast for screen mirror. I had a Google pixel which doesn't support miracast so I had to swap to a Samsung. Screen mirror works great now. Only issue I've had is after the last android auto update it takes two times to connect wireless. It used to connect automatically when I started the truck, now I have to click connect, it fails, I click again and it works. I think the issue is on android though. Its something to do with the "handshake" between the deck wifi (deck uses its own wifi signal not bluetooth for AA) and android auto. Wired always works right away, plus you get charging at the same time then.
Install wise it took me awhile but only because I didn't know what I was doing. Its a lot of wires with idatalink. If you get the exact Ram specific instructions from Idatalink it tells you which wires you need or don't need, that helped a lot as I was trying to hook up crap I didn't need using general instructions which show every wire being used. For the 17 ram I didn't need like 3 or so of the idatalink cables.
Also read the directions. I sort of skipped through them thinking I could just do it. There is a plastic cover piece that doesn't look like it would do anything. I couldn't figure out why the screen wouldn't turn on. It specifically says in the instructions you MUST INSTALL COVER for screen to turn on. This includes the 6 screws that hold the screen on. Probably wasted like 2 hours trying to plug screen in without the cover to test it. Finally read instructions, installed all the screws and cover and it came on.
Also there are extra brackets that come in the box to extend if your dash were too tight. You don't need them on a Ram so you can ignore them unless you want you HU to stick out an extra few inches. That section of the instructions is a bit confusing as they show you how to install the extension, but don't mention they have it preset to not use an extension. So I was confused do I install the brackets or not.
Oh and don't forget to ignore the instructions and wire the parking brake wire from the deck to the chassis of the Head unit. This makes it think your parking brake is always on so now you use screen mirror and drive or set android auto up without the parking brake on. I just crimped on a circular crimp and put a screw into one of the HU holes. Some install shops wont do this liability wise if you have it installed by them. The shop I bought the HU from told me to do this but said they wouldn't do it themselves.