Please don't buy from them. We get a lot of their customers coming to these forums for support. For a 2020 that already has a non-Nav 8.4 radio you only need a new radio. it should be plug and play. The whole "pre-programmed" thing is BS. The radio reads the programming from the BCM. I think there is already a thread in these forums on upgrading the newer radios.
@Roman217 may be able to jump in here. he is the master on all this radio stuff.
@Roman217 may be able to jump in here. he is the master on all this radio stuff.