Play content through sound bar and old stereo system
i there. Newbie here.
I just got a Vizio M558-G1 which I have connected to a Vizio sb3621n sound bar via optical cable and to an old preamp/amp/speaker system via RCA jack outputs from the TV to the preamp.
When I play Amazon Prime videos the sound gets played simultaneously through my stereo system and my soundbar and sounds great.
But when I cast content from my Samsung S7 phone, such as HBO GO, or when I play music saved on my phone, and use a bluetooth connection to the TV, the sound only plays through the sound bar.
Is there a setting I can change to get the music or the movies sent from my phone to play through BOTH the sound bar and stereo system simultaneously, as it does when I play content directly from the TV?
Thanks in advance.