Two weeks ago I installed a new 1622932-00-A on my 2021 MY LR. I've been holding off writing about it because I wanted to make sure it was working. Installed it per the directions and put the antenna on the "metal shelf" that
@WhiteOnWhiteMY described in
SiriusXM on Model Y.
After connecting the new radio up, but without connecting the Sirius antenna, I made sure everything was good by trying the FM radio and it worked. Then connected up the antenna, did a two button reboot, and I had Sirius as a source! Selected it and it worked. The radio has been working fine with the subscription that it previously had. I do have a few small foliage related dropouts in areas where by wife's MKZ doesn't, but not enough for me to try relocating the antenna.