New owner radio questions.
 

Hi All,
I just bought a 2013 A6 2.0T. I am curious about a few radio things.
1. I can not get all of the XM stations just the first 126 or so. Is there a way to fix this?
2. I saw a few places online you can buy a kit to upgrade the MMI to one that will work with CarPlay. Do these really work or am I asking for trouble? I already miss my car play and pandora. Is there a reliable source to get them from?
Thanks in advance I am sure there will be many more questions.
Eric Austin