2M Audio Video HDMI -Compatible Cable For XBOX 360 high-definition line Grey - AliExpress
Xbox 360 Audio Adapter - Video Game Accessories - Frontline Games
Amazon.com: Mcbazel RCA Toslink Optical Audio Cable Adapter for Xbox 360 & Xbox 360 Slim : Video Games
My TV doesn't have audio out and the Xbox 360 A/V cable can't be plugged in at the same time as HDMI. Took some pliers and an electric sander and... : r/techsupportgore