Hopefully an informative post...
When they started to charge the $9.99 connectivity fee, I decided to see if I could live without slacker and tunein from Tesla, and instead use Amazon’s Alexa Auto.
After a full month of use, I definitely prefer Alexa Auto for music and everything else Alexa does. That being said I do still prefer podcasts through the Tesla screen because of the user interface.
Considering it’s a one-off $30 purchase and may mean that you do not need to pay the $10 tesla premium connectivity fee, it may be a better solution for some (not all).