Question How to connect firestick through older home theater without HDMI

[skaukatt]

I have an old Sony STR-K4800P home theater system without HDMI and I'd like to have my firestick play through the system. One suggestion is to purchase this: HDMI to Composite AV Converter for Amazon Fire Streaming Stick - http://www.amazon.com/HDMI-Converter-Amazon-Streaming-Stick/dp/B00Z7Z2SM6 - Is this how to accomplish this and how do I connect it to the system? I have the stick currently connected to my Vizio TV via HDMI. The TV has multiple HDMI, composite (blue, green,) RCA (red, white & yellow) and digital optical connections.
Thank you!

 

[hang-the-9]

Does it not play if you connect the TV audio out to the receiver? Using that adapter would be a bad idea since you would kill the video quality on the firestick to tube TV era.