hmm… i don’t have any experience using USB c to aux cables but it seems that is what you might be looking for
Type C to 3.5mm Audio Aux Jack Adapter, ARCHEER USB C to 3.5mm Audio Cable with 4.6ft Spring Extension Aux Cord Compatible Google Pixel 3/3 XL/2/ 2XL, Samsung Note 10 and More Type C Device https://www.amazon.com/dp/B07PKMF9TT/ref=cm_sw_r_cp_api_i_lWUYDb1RQ2RFP