Optionally, if you already have the 3.5mm to RCA cable, you can buy these adapters which will serve the same purpose.

https://www.amazon.com/Adapter-Upgraded-JEEUE-connectors-converting/dp/B07QXYSDST/ref=mp_s_a_1_5?keywords=female+rca+to+1%2F4&qid=1583349990&sprefix=female+RCA+to+&sr=8-5

Neither option is better or worse. It just depends what you prefer.