As far as I understand you are not going to swap out the head unit in a modern vehicle anymore. They are integrated into the CANBUS system and control a lot more than just your entertainment system. RAM has an upgraded audio option which is the Alpine speakers and sub. A few people have changed the speakers and others have also added a multi-channel EQ/amp/processor to augment the sound.
uConnect has Sirius/XM built in. I don't use it since I don't like the crappy audio quality that the compression in the satellite stream induces. Sirius/XM also doesn't offer the music I usually listen to. They are for mainstream listeners and I hate commercials on something I subscribe to already. I am like you in that I like quality over quantity. For loudness I am happy with being able to hear it on the highway with the windows down. I stream music from my phone using bluetooth and even with the bluetooth compression it sounds much better than anything Sirius/XM can offer.
There are people that have hacked the uConnect software and offer the ability to change the vehicle software to add/change functionality and inputs.
I'm sure someone else will be able to add to this. Opinions on sound quality vary greatly since it's all relative.
uConnect has Sirius/XM built in. I don't use it since I don't like the crappy audio quality that the compression in the satellite stream induces. Sirius/XM also doesn't offer the music I usually listen to. They are for mainstream listeners and I hate commercials on something I subscribe to already. I am like you in that I like quality over quantity. For loudness I am happy with being able to hear it on the highway with the windows down. I stream music from my phone using bluetooth and even with the bluetooth compression it sounds much better than anything Sirius/XM can offer.
There are people that have hacked the uConnect software and offer the ability to change the vehicle software to add/change functionality and inputs.
I'm sure someone else will be able to add to this. Opinions on sound quality vary greatly since it's all relative.