One of the strays here used to meow/cry all the time, driving us crazy, and her feeder told me it'd been like that forever. Then this stray changed feeding stations and has been eating at mine for a few months. She hardly ever meouws like that anymore. I attribute it to the fact that I linger for a long time while they eat and after, give treats now and then, and there are a lot of cats all together just lounging around, kind of a community, so she's not as scared or lonely and doesn't feel like she has to meow desperately for attention. Just a thought: maybe your cat will unlearn the need to constantly meouw for his life... I also play with her a lot with Da Bird (it's the interaction with us they love when playing with wand toys, that's what calms them down).