Home Theater Questions? Ask a Technician for Answers ASAP
Which SONOS model are you trying to connect?
Additionally, PDP430 is not a valid Pioneer model number- please check again.
Also, the Tuner function is for Coaxial Tuning in the TV- does not have anything to do with audio.
Please let me know specifically how you're trying to connect the Sonos (using what cables and what port on the back of the TV).