So I actually managed to do this mod, had a spare 360 component cable and no 360. My co-worker decided to giveaway the OG Xbox component cable I lent him. I'm going to miss it..
Anyways, my solders are a mess, the metal shell didn't snap back together well, I bent and re-bent some pins, and there's a hole in my mousepad, but it worked on the first try. I used the end of a cheap s-video cable (not the Microsoft one with the box), same connector.