A:AnswerThe interoperable Vehicle dock works with Sirius, XM and SiriusXM dock and play radios. The list of compatible models are listed on the product page (Overview tab)
A:AnswerNo- you should use the SXV300 SiriusXM Connect tuner which will plug into the back of the INFPRV351 radio and allow you to control it from there
A:AnswerUnfortunately the new interoperable vehicle kit will not work with the SP-R2. Your options would be to either replace your Sirius radio with a newer model or searching online if any retailers have a second vehicle kit for the SP-R2.