Remove the TuneIn from your controller app.

I'm out. Good luck Sonos team.

I think the question is more about the use (if any) of personal data in the transaction between the end user, Sonos and Tunein.  Tunein’s business model does seem to be partially based on the monetisation of service usage data.  This can be reasonably inferred from certain clauses in the EULA imposed by tunein on end users who use their services directly through a web browser or phone app for example.

The questioner seems to be enquiring about similar content if it exists in the agreement between Sonos and Tunein.  Whether Sonos is prepared to discuss that is up to them.  In my opinion, organisations including private commercial companies have a moral responsibility to be transparent about the use of individual’s personal data. In some jurisdictions they have legal responsibilities to varying degrees too.
 

I certainly doesn't hope that sonos need lock to answer those simple questions

It´s well written by Dreyfus, but i don´t think it´s up to Sonos or not. When a company's privacy policy are so impotent as sonos´s. They should be excited to answer…? 

I would suggest that the privacy policies of banks, insurance and healthcare companies are more important to most people than the privacy policies of the likes of Sonos and Tunein.  There is a principle  involved here, however, and, as I said, companies should be more transparent about what personal data they collect and how they use and profit from it.  
 

Generally speaking, the interests of those who run companies do not coincide completely with the interests or their customers.  This is where the law comes in.  In an ideal world, the law would seek to balance the interests of different groups in society.  In practice, the position of this balance varies.  In the European Economic Area people have rights specified by the General Data Protection Regulation.  The GDPR also specifies the corresponding responsibilities of organisations.  Elsewhere there are weaker rights or no rights for customers.  If you live in an EEA country you can look up your rights with respect to data protection on you government’s website including the procedures for asserting those rights.  If you do not live in an EEA country, as I note above, you probably have weaker or no rights.

If you never click on the TuneIn icon, then no data will be sent to them (except the request for the icon, which is cached for future use).

If you do click on it and then one more level, a few SMAPI calls will be made, you can see exactly what on the developer site. As with any web service, TuneIn knows your IP address. If you click on Local stations, your zip code is also sent.

That’s it. Sonos use anonymous TuneIn, so there’s no account details to even pass on.

@BjarkeSS I think what controlav is saying is that there is little if anything to be concerned about with regard to the use of the Tunein facility on your Sonos system. 

For what it is worth I use the Tunein facility myself in the knowledge that certain information is shared.  I feel it is a fair exchange for an otherwise free service which I find convenient.

While I do not share you concerns in this case, I do recognise and understand why you might be concerned and I hope my posts have been of some use and interest to you.