I called Sirius/XM customer support about this exact issue and was told it has to do with the radio itself. It's either a Sirius radio or an XM radio (I forget which) but it doesn't receive BOTH, therefore it won't pick up all of the stations. Very frustrating.My 2015 Fiat 500L allows me to access all Sirius XM stations I subscribe to but I cannot access upper stations on the 2019 Lusso (i.e. channel 301 Road Trip Radio). Any suggestions?