I just installed the GPS antenna behind the console as per the (very simple instructions that came with the unit) for my 2019 SL . After the install, the ride system still doesn't see the upgrade. I have double-checked/re-seated the harness wire. I updated the system software to the latest and tried a map update only to get a "no package detected" error.
I am curious, did anyone get this install to work at home. I really don't want to go to the dealership (they will sit on my slinger for at least a week and I don't trust them based on my past interactions).
I just need confirmation that this is doable/successful at home.