I have the Leer plug and play harness in my 2016, but when the dealer wanted to splice into my 2019's wiring I said no. This was in 2019, so I wasn't interested in being a guinea pig. I got a tonneau cover instead. No problems with the plug and play harness in my 2016 after almost five years. I have the advanced trailering system in my 2019, but I did not know about the harness incompatibility issue with that. My big concern at the time was my power down/up tailgate, which could only be operated with the canopy back glass in the open position. Every canopy has a lip on the rear glass that prevents the tailgate from being opened, which is fine if you have a manually operated tailgate, but doesn't work with the power tailgates. I imagine this will be resolved at some point in time in the future, but it wasn't in 2019.