I've looked and couldn't find any write ups.. if you come across them, post so I can read up on them.there are actually several very long threads on this. Yes both go into the radio. One is for XM the other is for Nav. The radio side is color and orientation coded so the tan goes in the tan the blue into the blue and so on. In one of the writeups I believe they actually connect to 2 others under the dash and you need an extension part number the dealer should have. You can do the extension your self but that requires more know how on your part. I would have to find it to be sure. The write up was done in the early 17's and was done on a 16, its in a pdf and has all the part numbers needed from the dealer to do it.
I would think it would...its just components that need a signal. Its a 7.0" screen 2019... upgrading to a 2019 8.4 screen.. it needs the tri- band signal. The SXT can be ordered with the 8.4... so I assume all main wirings are there.. the shark fin is the tri-band signal. My car already has "uconnect" and XM radio.. so its not like its plain jane stock model.. i will test and report back though. Lol. Thanks for your help.Hmm I am not sure about the Gardian stuff and that requires data from Dodge and SXM. The right up is for 16's and 16's dont have the Gardian stuff. I would bet though that if the car did not come with that feature enabled then its not going to work even if you get all that hooked up and the radio working.