Need Help finding an adapter

[TheIcePhoenix]

I have
LG Electronics OLED55B7A 55-Inch 4K Ultra HD Smart OLED TV (2017 Model)

and

DELL ALTEC LANSING ADA995 5.1 THX SURROUND SYSTEM

the TV does NOT have a headphone/3.5mm connection only optical audio or ARC and the Sound system only has 3.5mm headphone connections.

I am looking for a solution to connecting this system to my TV .

 

[jay32267]

Something like this...
https/www.amazon.com/Musou-Digital-Optical-Converter-Adapter/dp/B01AWBA8U8/ref=sr_1_3?ie=UTF8&qid=1518113199&sr=8-3&keywords=digital+optical+to+analog+converter

and one of these

https/www.amazon.com/AmazonBasics-3-5mm-2-Male-Adapter-Cable/dp/B01D5H8KO2/ref=sr_1_2_sspa?s=electronics&ie=UTF8&qid=1518113266&sr=1-2-spons&keywords=rca+to+1%2F8%22&psc=1